CVE-2026-65634 (GCVE-0-2026-65634)
Vulnerability from cvelistv5 – Published: 2026-09-22 08:49 – Updated: 2026-09-24 20:06
VLAI
EPSS
VEX
Title
Superlinear CPU denial of service in Erlang/OTP ASN.1 OBJECT IDENTIFIER decoder
Summary
Inefficient algorithmic complexity in the Erlang/OTP asn1 OBJECT IDENTIFIER decoder allows a remote unauthenticated attacker to cause denial of service by sending a crafted OID during the TLS handshake.
The BER OID decoder asn1rtt_ber:dec_subidentifiers/3 in lib/asn1/src/asn1rtt_ber.erl and the equivalent PER helper asn1rtt_per_common:dec_subidentifiers/3 in lib/asn1/src/asn1rtt_per_common.erl accumulate a base-128 subidentifier into an unbounded integer using (Av bsl 7) + H per continuation byte. Each shift and addition on the growing accumulator is linear in the number of bits already accumulated, giving quadratic total work in the size of a single subidentifier. The JER helper asn1rtt_jer:json2oid/1 in lib/asn1/src/asn1rtt_jer.erl exhibits the same class of unbounded-integer parsing when decoding a dot-separated OID from JSON. A DER-encoded OBJECT IDENTIFIER with one very large arc (approximately 262 KB of continuation bytes) consumes roughly 13 seconds of CPU on typical hardware.
The vulnerable decoder is generated into every ASN.1 module that contains an OBJECT IDENTIFIER, including OTP-PUB-KEY which is reached during X.509 certificate parsing via public_key:pkix_decode_cert/2. This decoder runs before any signature or trust chain verification, so any Erlang service that parses peer TLS certificates is exposed: the default for TLS clients (which always parse the server certificate) and for mutual-TLS servers (which parse client certificates).
This vulnerability is associated with program files lib/asn1/src/asn1rtt_ber.erl, lib/asn1/src/asn1rtt_per_common.erl and lib/asn1/src/asn1rtt_jer.erl and program routines asn1rtt_ber:dec_subidentifiers/3, asn1rtt_per_common:dec_subidentifiers/3 and asn1rtt_jer:json2oid/1.
This issue affects OTP from OTP 17.0 before OTP 27.3.4.18, OTP 28.5.0.7, and OTP 29.1.1, corresponding to asn1 from 3.0 before 5.3.4.3, 5.4.3.1, and 5.5.2. Whether OTP before OTP 17.0, corresponding to asn1 before 3.0, is affected is unknown.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 10:12 UTC
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/erlang/otp/security/advisories… | relatedvendor-advisory |
| https://cna.erlef.org/cves/CVE-2026-65634.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-65634 | related |
| https://www.erlang.org/doc/system/versions.html#o… | x_version-scheme |
| https://github.com/erlang/otp/commit/0fe2c02fdc06… | patch |
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Erlang | OTP |
Affected:
17.0 , < *
(otp)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
||
| Erlang | OTP |
Affected:
3.0 , < *
(otp)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
||
| Erlang | OTP |
Affected:
84adefa331c4159d432d22840663c38f155cd4c1 , < 0fe2c02fdc06fab1c63be9db1a7456993d20f838
(git)
Unaffected: 0fe2c02fdc06fab1c63be9db1a7456993d20f838 , < * (git) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
Date Public
2026-09-22 08:49
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-65634",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T10:12:07.686442Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T10:15:28.691Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"modules": [
"asn1rtt_ber",
"asn1rtt_per_common",
"asn1rtt_jer"
],
"packageName": "otp",
"packageURL": "pkg:software-id/erlang.org/otp",
"product": "OTP",
"programFiles": [
"lib/asn1/src/asn1rtt_ber.erl",
"lib/asn1/src/asn1rtt_per_common.erl",
"lib/asn1/src/asn1rtt_jer.erl"
],
"programRoutines": [
{
"name": "asn1rtt_ber:dec_subidentifiers/3"
},
{
"name": "asn1rtt_per_common:dec_subidentifiers/3"
},
{
"name": "asn1rtt_jer:json2oid/1"
}
],
"vendor": "Erlang",
"versions": [
{
"changes": [
{
"at": "27.3.4.18",
"status": "unaffected"
},
{
"at": "28.5.0.7",
"status": "unaffected"
},
{
"at": "29.1.1",
"status": "unaffected"
}
],
"lessThan": "*",
"status": "affected",
"version": "17.0",
"versionType": "otp"
}
]
},
{
"cpes": [
"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"modules": [
"asn1rtt_ber",
"asn1rtt_per_common",
"asn1rtt_jer"
],
"packageName": "asn1",
"packageURL": "pkg:otp/asn1",
"product": "OTP",
"programFiles": [
"src/asn1rtt_ber.erl",
"src/asn1rtt_per_common.erl",
"src/asn1rtt_jer.erl"
],
"programRoutines": [
{
"name": "asn1rtt_ber:dec_subidentifiers/3"
},
{
"name": "asn1rtt_per_common:dec_subidentifiers/3"
},
{
"name": "asn1rtt_jer:json2oid/1"
}
],
"repo": "https://github.com/erlang/otp",
"vendor": "Erlang",
"versions": [
{
"changes": [
{
"at": "5.3.4.3",
"status": "unaffected"
},
{
"at": "5.4.3.1",
"status": "unaffected"
},
{
"at": "5.5.2",
"status": "unaffected"
}
],
"lessThan": "*",
"status": "affected",
"version": "3.0",
"versionType": "otp"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"modules": [
"asn1rtt_ber",
"asn1rtt_per_common",
"asn1rtt_jer"
],
"packageName": "erlang/otp",
"packageURL": "pkg:github/erlang/otp",
"product": "OTP",
"programFiles": [
"lib/asn1/src/asn1rtt_ber.erl",
"lib/asn1/src/asn1rtt_per_common.erl",
"lib/asn1/src/asn1rtt_jer.erl"
],
"programRoutines": [
{
"name": "asn1rtt_ber:dec_subidentifiers/3"
},
{
"name": "asn1rtt_per_common:dec_subidentifiers/3"
},
{
"name": "asn1rtt_jer:json2oid/1"
}
],
"repo": "https://github.com/erlang/otp",
"vendor": "Erlang",
"versions": [
{
"lessThan": "0fe2c02fdc06fab1c63be9db1a7456993d20f838",
"status": "affected",
"version": "84adefa331c4159d432d22840663c38f155cd4c1",
"versionType": "git"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "0fe2c02fdc06fab1c63be9db1a7456993d20f838",
"versionType": "git"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
"versionEndExcluding": "27.3.4.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
"versionEndExcluding": "28.5.0.7",
"versionStartIncluding": "28.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
"versionEndExcluding": "29.1.1",
"versionStartIncluding": "29.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "tynus2"
},
{
"lang": "en",
"type": "reporter",
"value": "Lukas Backstr\u00f6m"
},
{
"lang": "en",
"type": "remediation developer",
"value": "John H\u00f6gberg"
}
],
"datePublic": "2026-09-22T08:49:25.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eInefficient algorithmic complexity in the Erlang/OTP asn1 OBJECT IDENTIFIER decoder allows a remote unauthenticated attacker to cause denial of service by sending a crafted OID during the TLS handshake.\u003c/p\u003e\n\u003cp\u003eThe BER OID decoder \u003ccode\u003easn1rtt_ber:dec_subidentifiers/3\u003c/code\u003e in \u003ccode\u003elib/asn1/src/asn1rtt_ber.erl\u003c/code\u003e and the equivalent PER helper \u003ccode\u003easn1rtt_per_common:dec_subidentifiers/3\u003c/code\u003e in \u003ccode\u003elib/asn1/src/asn1rtt_per_common.erl\u003c/code\u003e accumulate a base-128 subidentifier into an unbounded integer using \u003ccode\u003e(Av bsl 7) + H\u003c/code\u003e per continuation byte. Each shift and addition on the growing accumulator is linear in the number of bits already accumulated, giving quadratic total work in the size of a single subidentifier. The JER helper \u003ccode\u003easn1rtt_jer:json2oid/1\u003c/code\u003e in \u003ccode\u003elib/asn1/src/asn1rtt_jer.erl\u003c/code\u003e exhibits the same class of unbounded-integer parsing when decoding a dot-separated OID from JSON. A DER-encoded OBJECT IDENTIFIER with one very large arc (approximately 262 KB of continuation bytes) consumes roughly 13 seconds of CPU on typical hardware.\u003c/p\u003e\n\u003cp\u003eThe vulnerable decoder is generated into every ASN.1 module that contains an OBJECT IDENTIFIER, including \u003ccode\u003eOTP-PUB-KEY\u003c/code\u003e which is reached during X.509 certificate parsing via \u003ccode\u003epublic_key:pkix_decode_cert/2\u003c/code\u003e. This decoder runs before any signature or trust chain verification, so any Erlang service that parses peer TLS certificates is exposed: the default for TLS clients (which always parse the server certificate) and for mutual-TLS servers (which parse client certificates).\u003c/p\u003e\n\u003cp\u003eThis vulnerability is associated with program files \u003ccode\u003elib/asn1/src/asn1rtt_ber.erl\u003c/code\u003e, \u003ccode\u003elib/asn1/src/asn1rtt_per_common.erl\u003c/code\u003e and \u003ccode\u003elib/asn1/src/asn1rtt_jer.erl\u003c/code\u003e and program routines \u003ccode\u003easn1rtt_ber:dec_subidentifiers/3\u003c/code\u003e, \u003ccode\u003easn1rtt_per_common:dec_subidentifiers/3\u003c/code\u003e and \u003ccode\u003easn1rtt_jer:json2oid/1\u003c/code\u003e.\u003c/p\u003e\n\u003cp\u003eThis issue affects OTP from OTP\u0026nbsp;17.0 before OTP\u0026nbsp;27.3.4.18, OTP\u0026nbsp;28.5.0.7, and OTP\u0026nbsp;29.1.1, corresponding to asn1 from 3.0 before 5.3.4.3, 5.4.3.1, and 5.5.2. Whether OTP before OTP\u0026nbsp;17.0, corresponding to asn1 before 3.0, is affected is unknown.\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "Inefficient algorithmic complexity in the Erlang/OTP asn1 OBJECT IDENTIFIER decoder allows a remote unauthenticated attacker to cause denial of service by sending a crafted OID during the TLS handshake.\n\nThe BER OID decoder `asn1rtt_ber:dec_subidentifiers/3` in `lib/asn1/src/asn1rtt_ber.erl` and the equivalent PER helper `asn1rtt_per_common:dec_subidentifiers/3` in `lib/asn1/src/asn1rtt_per_common.erl` accumulate a base-128 subidentifier into an unbounded integer using `(Av bsl 7) + H` per continuation byte. Each shift and addition on the growing accumulator is linear in the number of bits already accumulated, giving quadratic total work in the size of a single subidentifier. The JER helper `asn1rtt_jer:json2oid/1` in `lib/asn1/src/asn1rtt_jer.erl` exhibits the same class of unbounded-integer parsing when decoding a dot-separated OID from JSON. A DER-encoded OBJECT IDENTIFIER with one very large arc (approximately 262 KB of continuation bytes) consumes roughly 13 seconds of CPU on typical hardware.\n\nThe vulnerable decoder is generated into every ASN.1 module that contains an OBJECT IDENTIFIER, including `OTP-PUB-KEY` which is reached during X.509 certificate parsing via `public_key:pkix_decode_cert/2`. This decoder runs before any signature or trust chain verification, so any Erlang service that parses peer TLS certificates is exposed: the default for TLS clients (which always parse the server certificate) and for mutual-TLS servers (which parse client certificates).\n\nThis vulnerability is associated with program files `lib/asn1/src/asn1rtt_ber.erl`, `lib/asn1/src/asn1rtt_per_common.erl` and `lib/asn1/src/asn1rtt_jer.erl` and program routines `asn1rtt_ber:dec_subidentifiers/3`, `asn1rtt_per_common:dec_subidentifiers/3` and `asn1rtt_jer:json2oid/1`.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.18, OTP\u00a028.5.0.7, and OTP\u00a029.1.1, corresponding to asn1 from 3.0 before 5.3.4.3, 5.4.3.1, and 5.5.2. Whether OTP before OTP\u00a017.0, corresponding to asn1 before 3.0, is affected is unknown."
}
],
"value": "Inefficient algorithmic complexity in the Erlang/OTP asn1 OBJECT IDENTIFIER decoder allows a remote unauthenticated attacker to cause denial of service by sending a crafted OID during the TLS handshake.\n\nThe BER OID decoder asn1rtt_ber:dec_subidentifiers/3 in lib/asn1/src/asn1rtt_ber.erl and the equivalent PER helper asn1rtt_per_common:dec_subidentifiers/3 in lib/asn1/src/asn1rtt_per_common.erl accumulate a base-128 subidentifier into an unbounded integer using (Av bsl 7) + H per continuation byte. Each shift and addition on the growing accumulator is linear in the number of bits already accumulated, giving quadratic total work in the size of a single subidentifier. The JER helper asn1rtt_jer:json2oid/1 in lib/asn1/src/asn1rtt_jer.erl exhibits the same class of unbounded-integer parsing when decoding a dot-separated OID from JSON. A DER-encoded OBJECT IDENTIFIER with one very large arc (approximately 262 KB of continuation bytes) consumes roughly 13 seconds of CPU on typical hardware.\n\nThe vulnerable decoder is generated into every ASN.1 module that contains an OBJECT IDENTIFIER, including OTP-PUB-KEY which is reached during X.509 certificate parsing via public_key:pkix_decode_cert/2. This decoder runs before any signature or trust chain verification, so any Erlang service that parses peer TLS certificates is exposed: the default for TLS clients (which always parse the server certificate) and for mutual-TLS servers (which parse client certificates).\n\nThis vulnerability is associated with program files lib/asn1/src/asn1rtt_ber.erl, lib/asn1/src/asn1rtt_per_common.erl and lib/asn1/src/asn1rtt_jer.erl and program routines asn1rtt_ber:dec_subidentifiers/3, asn1rtt_per_common:dec_subidentifiers/3 and asn1rtt_jer:json2oid/1.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.18, OTP\u00a028.5.0.7, and OTP\u00a029.1.1, corresponding to asn1 from 3.0 before 5.3.4.3, 5.4.3.1, and 5.5.2. Whether OTP before OTP\u00a017.0, corresponding to asn1 before 3.0, is affected is unknown."
}
],
"impacts": [
{
"capecId": "CAPEC-229",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-229 Serialized Data Parameter Blowup"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-407",
"description": "CWE-407 Inefficient Algorithmic Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-24T20:06:38.007Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"name": "GitHub Advisory",
"tags": [
"related",
"vendor-advisory"
],
"url": "https://github.com/erlang/otp/security/advisories/GHSA-qghx-23m5-r55m"
},
{
"name": "EEF CNA record for CVE-2026-65634",
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-65634.html"
},
{
"name": "OSV record EEF-CVE-2026-65634",
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-65634"
},
{
"name": "Erlang/OTP version ordering",
"tags": [
"x_version-scheme"
],
"url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
},
{
"name": "Fix commit 0fe2c02 in erlang/otp",
"tags": [
"patch"
],
"url": "https://github.com/erlang/otp/commit/0fe2c02fdc06fab1c63be9db1a7456993d20f838"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Superlinear CPU denial of service in Erlang/OTP ASN.1 OBJECT IDENTIFIER decoder"
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-65634",
"datePublished": "2026-09-22T08:49:24.743Z",
"dateReserved": "2026-07-22T13:58:26.233Z",
"dateUpdated": "2026-09-24T20:06:38.007Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-65634",
"date": "2026-09-24",
"epss": "0.00418",
"percentile": "0.33389"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"modules": [
"asn1rtt_ber",
"asn1rtt_per_common",
"asn1rtt_jer"
],
"packageName": "otp",
"packageURL": "pkg:software-id/erlang.org/otp",
"product": "OTP",
"programFiles": [
"lib/asn1/src/asn1rtt_ber.erl",
"lib/asn1/src/asn1rtt_per_common.erl",
"lib/asn1/src/asn1rtt_jer.erl"
],
"programRoutines": [
{
"name": "asn1rtt_ber:dec_subidentifiers/3"
},
{
"name": "asn1rtt_per_common:dec_subidentifiers/3"
},
{
"name": "asn1rtt_jer:json2oid/1"
}
],
"vendor": "Erlang",
"versions": [
{
"changes": [
{
"at": "27.3.4.18",
"status": "unaffected"
},
{
"at": "28.5.0.7",
"status": "unaffected"
},
{
"at": "29.1.1",
"status": "unaffected"
}
],
"lessThan": "*",
"status": "affected",
"version": "17.0",
"versionType": "otp"
}
]
},
{
"cpes": [
"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"modules": [
"asn1rtt_ber",
"asn1rtt_per_common",
"asn1rtt_jer"
],
"packageName": "asn1",
"packageURL": "pkg:otp/asn1",
"product": "OTP",
"programFiles": [
"src/asn1rtt_ber.erl",
"src/asn1rtt_per_common.erl",
"src/asn1rtt_jer.erl"
],
"programRoutines": [
{
"name": "asn1rtt_ber:dec_subidentifiers/3"
},
{
"name": "asn1rtt_per_common:dec_subidentifiers/3"
},
{
"name": "asn1rtt_jer:json2oid/1"
}
],
"repo": "https://github.com/erlang/otp",
"vendor": "Erlang",
"versions": [
{
"changes": [
{
"at": "5.3.4.3",
"status": "unaffected"
},
{
"at": "5.4.3.1",
"status": "unaffected"
},
{
"at": "5.5.2",
"status": "unaffected"
}
],
"lessThan": "*",
"status": "affected",
"version": "3.0",
"versionType": "otp"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"modules": [
"asn1rtt_ber",
"asn1rtt_per_common",
"asn1rtt_jer"
],
"packageName": "erlang/otp",
"packageURL": "pkg:github/erlang/otp",
"product": "OTP",
"programFiles": [
"lib/asn1/src/asn1rtt_ber.erl",
"lib/asn1/src/asn1rtt_per_common.erl",
"lib/asn1/src/asn1rtt_jer.erl"
],
"programRoutines": [
{
"name": "asn1rtt_ber:dec_subidentifiers/3"
},
{
"name": "asn1rtt_per_common:dec_subidentifiers/3"
},
{
"name": "asn1rtt_jer:json2oid/1"
}
],
"repo": "https://github.com/erlang/otp",
"vendor": "Erlang",
"versions": [
{
"lessThan": "0fe2c02fdc06fab1c63be9db1a7456993d20f838",
"status": "affected",
"version": "84adefa331c4159d432d22840663c38f155cd4c1",
"versionType": "git"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "0fe2c02fdc06fab1c63be9db1a7456993d20f838",
"versionType": "git"
}
]
}
],
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Inefficient algorithmic complexity in the Erlang/OTP asn1 OBJECT IDENTIFIER decoder allows a remote unauthenticated attacker to cause denial of service by sending a crafted OID during the TLS handshake.\n\nThe BER OID decoder asn1rtt_ber:dec_subidentifiers/3 in lib/asn1/src/asn1rtt_ber.erl and the equivalent PER helper asn1rtt_per_common:dec_subidentifiers/3 in lib/asn1/src/asn1rtt_per_common.erl accumulate a base-128 subidentifier into an unbounded integer using (Av bsl 7) + H per continuation byte. Each shift and addition on the growing accumulator is linear in the number of bits already accumulated, giving quadratic total work in the size of a single subidentifier. The JER helper asn1rtt_jer:json2oid/1 in lib/asn1/src/asn1rtt_jer.erl exhibits the same class of unbounded-integer parsing when decoding a dot-separated OID from JSON. A DER-encoded OBJECT IDENTIFIER with one very large arc (approximately 262 KB of continuation bytes) consumes roughly 13 seconds of CPU on typical hardware.\n\nThe vulnerable decoder is generated into every ASN.1 module that contains an OBJECT IDENTIFIER, including OTP-PUB-KEY which is reached during X.509 certificate parsing via public_key:pkix_decode_cert/2. This decoder runs before any signature or trust chain verification, so any Erlang service that parses peer TLS certificates is exposed: the default for TLS clients (which always parse the server certificate) and for mutual-TLS servers (which parse client certificates).\n\nThis vulnerability is associated with program files lib/asn1/src/asn1rtt_ber.erl, lib/asn1/src/asn1rtt_per_common.erl and lib/asn1/src/asn1rtt_jer.erl and program routines asn1rtt_ber:dec_subidentifiers/3, asn1rtt_per_common:dec_subidentifiers/3 and asn1rtt_jer:json2oid/1.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.18, OTP\u00a028.5.0.7, and OTP\u00a029.1.1, corresponding to asn1 from 3.0 before 5.3.4.3, 5.4.3.1, and 5.5.2. Whether OTP before OTP\u00a017.0, corresponding to asn1 before 3.0, is affected is unknown."
}
],
"id": "CVE-2026-65634",
"lastModified": "2026-09-24T21:17:20.657",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-65634",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T10:12:07.686442Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-09-22T09:17:05.090",
"references": [
{
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"url": "https://cna.erlef.org/cves/CVE-2026-65634.html"
},
{
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"url": "https://github.com/erlang/otp/commit/0fe2c02fdc06fab1c63be9db1a7456993d20f838"
},
{
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"url": "https://github.com/erlang/otp/security/advisories/GHSA-qghx-23m5-r55m"
},
{
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-65634"
},
{
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
}
],
"sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-407"
}
],
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"type": "Secondary"
}
]
}
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-09-24T16:31:45Z",
"cve": "CVE-2026-65634",
"id": "CVE-2026-65634",
"initial_release_date": "2026-09-24T16:31:45Z",
"product_status:known_affected": "70",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-65634",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-65634.json",
"version": "2"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-65634",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T10:12:07.686442Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T10:15:21.666Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"modules": [
"asn1rtt_ber",
"asn1rtt_per_common",
"asn1rtt_jer"
],
"packageName": "otp",
"packageURL": "pkg:software-id/erlang.org/otp",
"product": "OTP",
"programFiles": [
"lib/asn1/src/asn1rtt_ber.erl",
"lib/asn1/src/asn1rtt_per_common.erl",
"lib/asn1/src/asn1rtt_jer.erl"
],
"programRoutines": [
{
"name": "asn1rtt_ber:dec_subidentifiers/3"
},
{
"name": "asn1rtt_per_common:dec_subidentifiers/3"
},
{
"name": "asn1rtt_jer:json2oid/1"
}
],
"vendor": "Erlang",
"versions": [
{
"changes": [
{
"at": "27.3.4.18",
"status": "unaffected"
},
{
"at": "28.5.0.7",
"status": "unaffected"
},
{
"at": "29.1.1",
"status": "unaffected"
}
],
"lessThan": "*",
"status": "affected",
"version": "17.0",
"versionType": "otp"
}
]
},
{
"cpes": [
"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"modules": [
"asn1rtt_ber",
"asn1rtt_per_common",
"asn1rtt_jer"
],
"packageName": "asn1",
"packageURL": "pkg:otp/asn1",
"product": "OTP",
"programFiles": [
"src/asn1rtt_ber.erl",
"src/asn1rtt_per_common.erl",
"src/asn1rtt_jer.erl"
],
"programRoutines": [
{
"name": "asn1rtt_ber:dec_subidentifiers/3"
},
{
"name": "asn1rtt_per_common:dec_subidentifiers/3"
},
{
"name": "asn1rtt_jer:json2oid/1"
}
],
"repo": "https://github.com/erlang/otp",
"vendor": "Erlang",
"versions": [
{
"changes": [
{
"at": "5.3.4.3",
"status": "unaffected"
},
{
"at": "5.4.3.1",
"status": "unaffected"
},
{
"at": "5.5.2",
"status": "unaffected"
}
],
"lessThan": "*",
"status": "affected",
"version": "3.0",
"versionType": "otp"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"modules": [
"asn1rtt_ber",
"asn1rtt_per_common",
"asn1rtt_jer"
],
"packageName": "erlang/otp",
"packageURL": "pkg:github/erlang/otp",
"product": "OTP",
"programFiles": [
"lib/asn1/src/asn1rtt_ber.erl",
"lib/asn1/src/asn1rtt_per_common.erl",
"lib/asn1/src/asn1rtt_jer.erl"
],
"programRoutines": [
{
"name": "asn1rtt_ber:dec_subidentifiers/3"
},
{
"name": "asn1rtt_per_common:dec_subidentifiers/3"
},
{
"name": "asn1rtt_jer:json2oid/1"
}
],
"repo": "https://github.com/erlang/otp",
"vendor": "Erlang",
"versions": [
{
"lessThan": "0fe2c02fdc06fab1c63be9db1a7456993d20f838",
"status": "affected",
"version": "84adefa331c4159d432d22840663c38f155cd4c1",
"versionType": "git"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "0fe2c02fdc06fab1c63be9db1a7456993d20f838",
"versionType": "git"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
"versionEndExcluding": "27.3.4.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
"versionEndExcluding": "28.5.0.7",
"versionStartIncluding": "28.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
"versionEndExcluding": "29.1.1",
"versionStartIncluding": "29.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "tynus2"
},
{
"lang": "en",
"type": "reporter",
"value": "Lukas Backstr\u00f6m"
},
{
"lang": "en",
"type": "remediation developer",
"value": "John H\u00f6gberg"
}
],
"datePublic": "2026-09-22T08:49:25.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eInefficient algorithmic complexity in the Erlang/OTP asn1 OBJECT IDENTIFIER decoder allows a remote unauthenticated attacker to cause denial of service by sending a crafted OID during the TLS handshake.\u003c/p\u003e\n\u003cp\u003eThe BER OID decoder \u003ccode\u003easn1rtt_ber:dec_subidentifiers/3\u003c/code\u003e in \u003ccode\u003elib/asn1/src/asn1rtt_ber.erl\u003c/code\u003e and the equivalent PER helper \u003ccode\u003easn1rtt_per_common:dec_subidentifiers/3\u003c/code\u003e in \u003ccode\u003elib/asn1/src/asn1rtt_per_common.erl\u003c/code\u003e accumulate a base-128 subidentifier into an unbounded integer using \u003ccode\u003e(Av bsl 7) + H\u003c/code\u003e per continuation byte. Each shift and addition on the growing accumulator is linear in the number of bits already accumulated, giving quadratic total work in the size of a single subidentifier. The JER helper \u003ccode\u003easn1rtt_jer:json2oid/1\u003c/code\u003e in \u003ccode\u003elib/asn1/src/asn1rtt_jer.erl\u003c/code\u003e exhibits the same class of unbounded-integer parsing when decoding a dot-separated OID from JSON. A DER-encoded OBJECT IDENTIFIER with one very large arc (approximately 262 KB of continuation bytes) consumes roughly 13 seconds of CPU on typical hardware.\u003c/p\u003e\n\u003cp\u003eThe vulnerable decoder is generated into every ASN.1 module that contains an OBJECT IDENTIFIER, including \u003ccode\u003eOTP-PUB-KEY\u003c/code\u003e which is reached during X.509 certificate parsing via \u003ccode\u003epublic_key:pkix_decode_cert/2\u003c/code\u003e. This decoder runs before any signature or trust chain verification, so any Erlang service that parses peer TLS certificates is exposed: the default for TLS clients (which always parse the server certificate) and for mutual-TLS servers (which parse client certificates).\u003c/p\u003e\n\u003cp\u003eThis vulnerability is associated with program files \u003ccode\u003elib/asn1/src/asn1rtt_ber.erl\u003c/code\u003e, \u003ccode\u003elib/asn1/src/asn1rtt_per_common.erl\u003c/code\u003e and \u003ccode\u003elib/asn1/src/asn1rtt_jer.erl\u003c/code\u003e and program routines \u003ccode\u003easn1rtt_ber:dec_subidentifiers/3\u003c/code\u003e, \u003ccode\u003easn1rtt_per_common:dec_subidentifiers/3\u003c/code\u003e and \u003ccode\u003easn1rtt_jer:json2oid/1\u003c/code\u003e.\u003c/p\u003e\n\u003cp\u003eThis issue affects OTP from OTP\u0026nbsp;17.0 before OTP\u0026nbsp;27.3.4.18, OTP\u0026nbsp;28.5.0.7, and OTP\u0026nbsp;29.1.1, corresponding to asn1 from 3.0 before 5.3.4.3, 5.4.3.1, and 5.5.2. Whether OTP before OTP\u0026nbsp;17.0, corresponding to asn1 before 3.0, is affected is unknown.\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "Inefficient algorithmic complexity in the Erlang/OTP asn1 OBJECT IDENTIFIER decoder allows a remote unauthenticated attacker to cause denial of service by sending a crafted OID during the TLS handshake.\n\nThe BER OID decoder `asn1rtt_ber:dec_subidentifiers/3` in `lib/asn1/src/asn1rtt_ber.erl` and the equivalent PER helper `asn1rtt_per_common:dec_subidentifiers/3` in `lib/asn1/src/asn1rtt_per_common.erl` accumulate a base-128 subidentifier into an unbounded integer using `(Av bsl 7) + H` per continuation byte. Each shift and addition on the growing accumulator is linear in the number of bits already accumulated, giving quadratic total work in the size of a single subidentifier. The JER helper `asn1rtt_jer:json2oid/1` in `lib/asn1/src/asn1rtt_jer.erl` exhibits the same class of unbounded-integer parsing when decoding a dot-separated OID from JSON. A DER-encoded OBJECT IDENTIFIER with one very large arc (approximately 262 KB of continuation bytes) consumes roughly 13 seconds of CPU on typical hardware.\n\nThe vulnerable decoder is generated into every ASN.1 module that contains an OBJECT IDENTIFIER, including `OTP-PUB-KEY` which is reached during X.509 certificate parsing via `public_key:pkix_decode_cert/2`. This decoder runs before any signature or trust chain verification, so any Erlang service that parses peer TLS certificates is exposed: the default for TLS clients (which always parse the server certificate) and for mutual-TLS servers (which parse client certificates).\n\nThis vulnerability is associated with program files `lib/asn1/src/asn1rtt_ber.erl`, `lib/asn1/src/asn1rtt_per_common.erl` and `lib/asn1/src/asn1rtt_jer.erl` and program routines `asn1rtt_ber:dec_subidentifiers/3`, `asn1rtt_per_common:dec_subidentifiers/3` and `asn1rtt_jer:json2oid/1`.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.18, OTP\u00a028.5.0.7, and OTP\u00a029.1.1, corresponding to asn1 from 3.0 before 5.3.4.3, 5.4.3.1, and 5.5.2. Whether OTP before OTP\u00a017.0, corresponding to asn1 before 3.0, is affected is unknown."
}
],
"value": "Inefficient algorithmic complexity in the Erlang/OTP asn1 OBJECT IDENTIFIER decoder allows a remote unauthenticated attacker to cause denial of service by sending a crafted OID during the TLS handshake.\n\nThe BER OID decoder asn1rtt_ber:dec_subidentifiers/3 in lib/asn1/src/asn1rtt_ber.erl and the equivalent PER helper asn1rtt_per_common:dec_subidentifiers/3 in lib/asn1/src/asn1rtt_per_common.erl accumulate a base-128 subidentifier into an unbounded integer using (Av bsl 7) + H per continuation byte. Each shift and addition on the growing accumulator is linear in the number of bits already accumulated, giving quadratic total work in the size of a single subidentifier. The JER helper asn1rtt_jer:json2oid/1 in lib/asn1/src/asn1rtt_jer.erl exhibits the same class of unbounded-integer parsing when decoding a dot-separated OID from JSON. A DER-encoded OBJECT IDENTIFIER with one very large arc (approximately 262 KB of continuation bytes) consumes roughly 13 seconds of CPU on typical hardware.\n\nThe vulnerable decoder is generated into every ASN.1 module that contains an OBJECT IDENTIFIER, including OTP-PUB-KEY which is reached during X.509 certificate parsing via public_key:pkix_decode_cert/2. This decoder runs before any signature or trust chain verification, so any Erlang service that parses peer TLS certificates is exposed: the default for TLS clients (which always parse the server certificate) and for mutual-TLS servers (which parse client certificates).\n\nThis vulnerability is associated with program files lib/asn1/src/asn1rtt_ber.erl, lib/asn1/src/asn1rtt_per_common.erl and lib/asn1/src/asn1rtt_jer.erl and program routines asn1rtt_ber:dec_subidentifiers/3, asn1rtt_per_common:dec_subidentifiers/3 and asn1rtt_jer:json2oid/1.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.18, OTP\u00a028.5.0.7, and OTP\u00a029.1.1, corresponding to asn1 from 3.0 before 5.3.4.3, 5.4.3.1, and 5.5.2. Whether OTP before OTP\u00a017.0, corresponding to asn1 before 3.0, is affected is unknown."
}
],
"impacts": [
{
"capecId": "CAPEC-229",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-229 Serialized Data Parameter Blowup"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-407",
"description": "CWE-407 Inefficient Algorithmic Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-24T20:06:38.007Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"name": "GitHub Advisory",
"tags": [
"related",
"vendor-advisory"
],
"url": "https://github.com/erlang/otp/security/advisories/GHSA-qghx-23m5-r55m"
},
{
"name": "EEF CNA record for CVE-2026-65634",
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-65634.html"
},
{
"name": "OSV record EEF-CVE-2026-65634",
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-65634"
},
{
"name": "Erlang/OTP version ordering",
"tags": [
"x_version-scheme"
],
"url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
},
{
"name": "Fix commit 0fe2c02 in erlang/otp",
"tags": [
"patch"
],
"url": "https://github.com/erlang/otp/commit/0fe2c02fdc06fab1c63be9db1a7456993d20f838"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Superlinear CPU denial of service in Erlang/OTP ASN.1 OBJECT IDENTIFIER decoder"
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-65634",
"datePublished": "2026-09-22T08:49:24.743Z",
"dateReserved": "2026-07-22T13:58:26.233Z",
"dateUpdated": "2026-09-24T20:06:38.007Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…