CVE-2026-13573
Full vulnerability record from the local CVENow database.
Description
A vulnerability was found in llvm llvm-project up to 22.1.6. This affects the function llvm::StringMap::insert in the library /lib/IR/ValueSymbolTable.cpp of the component ValueSymbolTable Module. The manipulation results in stack-based buffer overflow. Attacking locally is a requirement. The exploit has been made public and could be used. The presence of this vulnerability remains uncertain at this time. The LLVM project explains, that the reported behavior is outside its documented security scope and therefore not considered a security vulnerability.
Severity
LOW
CVSS score
1.9
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-06-29 15:16:38.687000
Last modified
2026-10-25 21:10:00.770000
View original CVE JSON
{
"id": "CVE-2026-13573",
"sourceIdentifier": "[email protected]",
"published": "2026-06-29T15:16:38.687",
"lastModified": "2026-10-25T21:10:00.770",
"vulnStatus": "Deferred",
"cveTags": [
{
"sourceIdentifier": "[email protected]",
"tags": [
"disputed"
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was found in llvm llvm-project up to 22.1.6. This affects the function llvm::StringMap::insert in the library /lib/IR/ValueSymbolTable.cpp of the component ValueSymbolTable Module. The manipulation results in stack-based buffer overflow. Attacking locally is a requirement. The exploit has been made public and could be used. The presence of this vulnerability remains uncertain at this time. The LLVM project explains, that the reported behavior is outside its documented security scope and therefore not considered a security vulnerability."
},
{
"lang": "es",
"value": "Se encontró una vulnerabilidad en llvm llvm-project hasta la versión 22.1.6. Esto afecta a la función llvm::StringMap::insert en la biblioteca /lib/IR/ValueSymbolTable.cpp del componente ValueSymbolTable Module. La manipulación resulta en un desbordamiento de búfer basado en pila. Atacar localmente es un requisito. El exploit se ha hecho público y podría utilizarse. El proyecto fue informado del problema con antelación a través de un informe de incidencias, pero aún no ha respondido."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "llvm",
"product": "llvm-project",
"cpes": [
"cpe:2.3:a:llvm:llvm-project:*:*:*:*:*:*:*:*"
],
"modules": [
"ValueSymbolTable Module"
],
"versions": [
{
"version": "22.1.0",
"status": "affected"
},
{
"version": "22.1.1",
"status": "affected"
},
{
"version": "22.1.2",
"status": "affected"
},
{
"version": "22.1.3",
"status": "affected"
},
{
"version": "22.1.4",
"status": "affected"
},
{
"version": "22.1.5",
"status": "affected"
},
{
"version": "22.1.6",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"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": "[email protected]",
"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": "[email protected]",
"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": "2026-06-29T15:23:01.490159Z",
"id": "CVE-2026-13573",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-119"
},
{
"lang": "en",
"value": "CWE-121"
}
]
}
],
"references": [
{
"url": "https://github.com/llvm/llvm-project/",
"source": "[email protected]"
},
{
"url": "https://github.com/llvm/llvm-project/issues/199187",
"source": "[email protected]"
},
{
"url": "https://github.com/user-attachments/files/28141697/poc.zip",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/cve/CVE-2026-13573",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/submit/844457",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/374581",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/374581/cti",
"source": "[email protected]"
}
]
}