CVE-2026-91781 (GCVE-0-2026-91781)
Vulnerability from cvelistv5 – Published: 2026-09-15 08:45 – Updated: 2026-09-15 13:39 X_Open Source
VLAI
EPSS
VEX
Title
GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference
Summary
A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 13:39 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/404052 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/404052/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-91781 | third-party-advisory |
| https://vuldb.com/submit/933336 | third-party-advisory |
| https://sourceware.org/bugzilla/show_bug.cgi?id=34449 | issue-tracking |
| https://github.com/Ech06/CVE_submit/tree/main/bug… | exploit |
| https://sourceware.org/git/gitweb.cgi?p=binutils-… | broken-linkpatch |
| https://www.gnu.org/ | broken-linkproduct |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-91781",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-15T13:39:03.939059Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T13:39:13.272Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*"
],
"modules": [
"ELF Section Handler"
],
"product": "Binutils",
"vendor": "GNU",
"versions": [
{
"status": "affected",
"version": "2.47"
},
{
"status": "unaffected",
"version": "2.48"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Ech06 (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 3.3,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 3.3,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 1.7,
"vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-404",
"description": "Denial of Service",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T08:45:14.192Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-404052 | GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/404052"
},
{
"name": "VDB-404052 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/404052/cti"
},
{
"name": "CVE-2026-91781 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-91781"
},
{
"name": "Submit #933336 | GNU GNU Binutils binutils 2.47 NULL Pointer Dereference",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/933336"
},
{
"tags": [
"issue-tracking"
],
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=34449"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34449"
},
{
"tags": [
"broken-link",
"patch"
],
"url": "https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7322e9bc30cb282575a701c307851fd3d66fee68"
},
{
"tags": [
"broken-link",
"product"
],
"url": "https://www.gnu.org/"
}
],
"tags": [
"x_open-source"
],
"timeline": [
{
"lang": "en",
"time": "2026-09-15T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-09-15T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-09-15T04:06:33.000Z",
"value": "VulDB entry last update"
}
],
"title": "GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference",
"x_generator": [
"VulDB PVTS v202609"
]
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-91781",
"datePublished": "2026-09-15T08:45:14.192Z",
"dateReserved": "2026-09-15T02:01:16.001Z",
"dateUpdated": "2026-09-15T13:39:13.272Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-91781",
"date": "2026-09-15",
"epss": "0.0012",
"percentile": "0.02124"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-91781\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-09-15T09:16:45.153\",\"lastModified\":\"2026-09-15T14:35:24.097\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component.\"}],\"affected\":[{\"source\":\"cna@vuldb.com\",\"affectedData\":[{\"vendor\":\"GNU\",\"product\":\"Binutils\",\"cpes\":[\"cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*\"],\"modules\":[\"ELF Section Handler\"],\"versions\":[{\"version\":\"2.47\",\"status\":\"affected\"},{\"version\":\"2.48\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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\",\"baseScore\":1.9,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"LOW\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":3.3,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.8,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:S/C:N/I:N/A:P\",\"baseScore\":1.7,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.1,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-09-15T13:39:03.939059Z\",\"id\":\"CVE-2026-91781\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-404\"},{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"references\":[{\"url\":\"https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34449\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://sourceware.org/bugzilla/show_bug.cgi?id=34449\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7322e9bc30cb282575a701c307851fd3d66fee68\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/cve/CVE-2026-91781\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/submit/933336\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/404052\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/404052/cti\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://www.gnu.org/\",\"source\":\"cna@vuldb.com\"}]}}",
"vulnrichment": {
"containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2026-09-15T08:45:14.192Z\"}, \"title\": \"GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference\", \"problemTypes\": [{\"descriptions\": [{\"type\": \"CWE\", \"cweId\": \"CWE-476\", \"lang\": \"en\", \"description\": \"NULL Pointer Dereference\"}]}, {\"descriptions\": [{\"type\": \"CWE\", \"cweId\": \"CWE-404\", \"lang\": \"en\", \"description\": \"Denial of Service\"}]}], \"affected\": [{\"vendor\": \"GNU\", \"product\": \"Binutils\", \"versions\": [{\"version\": \"2.47\", \"status\": \"affected\"}, {\"version\": \"2.48\", \"status\": \"unaffected\"}], \"cpes\": [\"cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*\"], \"modules\": [\"ELF Section Handler\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component.\"}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 4.8, \"vectorString\": \"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P\", \"baseSeverity\": \"MEDIUM\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 3.3, \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C\", \"baseSeverity\": \"LOW\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 3.3, \"vectorString\": \"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C\", \"baseSeverity\": \"LOW\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 1.7, \"vectorString\": \"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C\"}}], \"timeline\": [{\"time\": \"2026-09-15T00:00:00.000Z\", \"lang\": \"en\", \"value\": \"Advisory disclosed\"}, {\"time\": \"2026-09-15T02:00:00.000Z\", \"lang\": \"en\", \"value\": \"VulDB entry created\"}, {\"time\": \"2026-09-15T04:06:33.000Z\", \"lang\": \"en\", \"value\": \"VulDB entry last update\"}], \"credits\": [{\"lang\": \"en\", \"value\": \"Ech06 (VulDB User)\", \"type\": \"reporter\"}], \"references\": [{\"url\": \"https://vuldb.com/vuln/404052\", \"name\": \"VDB-404052 | GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference\", \"tags\": [\"vdb-entry\", \"technical-description\"]}, {\"url\": \"https://vuldb.com/vuln/404052/cti\", \"name\": \"VDB-404052 | CTI Indicators (IOB, IOC, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/cve/CVE-2026-91781\", \"name\": \"CVE-2026-91781 | CVE Analysis and Report\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://vuldb.com/submit/933336\", \"name\": \"Submit #933336 | GNU GNU Binutils binutils 2.47 NULL Pointer Dereference\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://sourceware.org/bugzilla/show_bug.cgi?id=34449\", \"tags\": [\"issue-tracking\"]}, {\"url\": \"https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34449\", \"tags\": [\"exploit\"]}, {\"url\": \"https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7322e9bc30cb282575a701c307851fd3d66fee68\", \"tags\": [\"broken-link\", \"patch\"]}, {\"url\": \"https://www.gnu.org/\", \"tags\": [\"broken-link\", \"product\"]}], \"tags\": [\"x_open-source\"], \"x_generator\": [\"VulDB PVTS v202609\"]}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-91781\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-15T13:39:03.939059Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-15T13:39:09.284Z\"}}]}",
"cveMetadata": "{\"cveId\": \"CVE-2026-91781\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"VulDB\", \"dateReserved\": \"2026-09-15T02:01:16.001Z\", \"datePublished\": \"2026-09-15T08:45:14.192Z\", \"dateUpdated\": \"2026-09-15T13:39:13.272Z\"}",
"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.
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.
Loading…
Loading…