CVE-2026-62641 (GCVE-0-2026-62641)
Vulnerability from cvelistv5 – Published: 2026-07-14 15:46 – Updated: 2026-07-14 17:27
VLAI
EPSS
VEX
Summary
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the TNEF decoder was subject to denial of service via a crafted compressed-RTF size.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 17:23 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-62641",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-14T17:23:21.954751Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T17:27:50.013Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Webmail",
"vendor": "Roundcube",
"versions": [
{
"lessThan": "1.6.17",
"status": "affected",
"version": "1.6.0",
"versionType": "semver"
},
{
"lessThan": "1.7.2",
"status": "affected",
"version": "1.7.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.6.17",
"versionStartIncluding": "1.6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.7.2",
"versionStartIncluding": "1.7.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the TNEF decoder was subject to denial of service via a crafted compressed-RTF size."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T15:46:29.138Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2"
},
{
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.2"
},
{
"url": "https://github.com/roundcube/roundcubemail/commit/6d1004fd3764a9606c53130b322c0f295c38be64"
},
{
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.17"
},
{
"url": "https://github.com/roundcube/roundcubemail/commit/bf253c72d4293c93fda511b8464fe9cb34b522c1"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-62641",
"datePublished": "2026-07-14T15:46:29.138Z",
"dateReserved": "2026-07-14T15:46:28.729Z",
"dateUpdated": "2026-07-14T17:27:50.013Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-62641",
"date": "2026-09-18",
"epss": "0.00467",
"percentile": "0.39613"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Webmail",
"vendor": "Roundcube",
"versions": [
{
"lessThan": "1.6.17",
"status": "affected",
"version": "1.6.0",
"versionType": "semver"
},
{
"lessThan": "1.7.2",
"status": "affected",
"version": "1.7.0",
"versionType": "semver"
}
]
}
],
"source": "cve@mitre.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"matchCriteriaId": "BE3CB576-6905-4ED7-AAD5-C0523B5E6FFD",
"versionEndExcluding": "1.6.17",
"versionStartIncluding": "1.6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"matchCriteriaId": "58061F28-9D4F-4D65-8C64-F77410B6E144",
"versionEndExcluding": "1.7.2",
"versionStartIncluding": "1.7.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the TNEF decoder was subject to denial of service via a crafted compressed-RTF size."
}
],
"id": "CVE-2026-62641",
"lastModified": "2026-07-20T12:56:55.210",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4,
"source": "cve@mitre.org",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-62641",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-14T17:23:21.954751Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-07-14T16:17:04.377",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "https://github.com/roundcube/roundcubemail/commit/6d1004fd3764a9606c53130b322c0f295c38be64"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "https://github.com/roundcube/roundcubemail/commit/bf253c72d4293c93fda511b8464fe9cb34b522c1"
},
{
"source": "cve@mitre.org",
"tags": [
"Release Notes"
],
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.17"
},
{
"source": "cve@mitre.org",
"tags": [
"Release Notes"
],
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.2"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-770"
}
],
"source": "cve@mitre.org",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-07-14T18:05:04+00:00",
"cve": "CVE-2026-62641",
"id": "CVE-2026-62641",
"initial_release_date": "2026-07-14T15:46:29.138000+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "roundcubemail: Roundcube Webmail: Denial of Service via crafted TNEF compressed-RTF size",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-62641.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-07-15T18:47:41Z",
"cve": "CVE-2026-62641",
"id": "CVE-2026-62641",
"initial_release_date": "2026-07-15T18:47:41Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-62641",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-62641.json",
"version": "2"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-62641",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-14T17:23:21.954751Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T17:27:37.976Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Webmail",
"vendor": "Roundcube",
"versions": [
{
"lessThan": "1.6.17",
"status": "affected",
"version": "1.6.0",
"versionType": "semver"
},
{
"lessThan": "1.7.2",
"status": "affected",
"version": "1.7.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.6.17",
"versionStartIncluding": "1.6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.7.2",
"versionStartIncluding": "1.7.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the TNEF decoder was subject to denial of service via a crafted compressed-RTF size."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T15:46:29.138Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2"
},
{
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.2"
},
{
"url": "https://github.com/roundcube/roundcubemail/commit/6d1004fd3764a9606c53130b322c0f295c38be64"
},
{
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.17"
},
{
"url": "https://github.com/roundcube/roundcubemail/commit/bf253c72d4293c93fda511b8464fe9cb34b522c1"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-62641",
"datePublished": "2026-07-14T15:46:29.138Z",
"dateReserved": "2026-07-14T15:46:28.729Z",
"dateUpdated": "2026-07-14T17:27:50.013Z",
"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…
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…