CVE-2025-7979

Ashlar-Vellum Graphite VC6 File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Graphite. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of VC6 files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25463.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector : AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.zerodayinitiative.com/advisories/ZDI-25-633/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ashlar:graphite:13.0.48:*:*:*:*:*:*:*

History

26 Sep 2026, 00:10

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad de Ejecución Remota de Código por Desbordamiento de Búfer Basado en Pila en el Análisis de Archivos VC6 de Ashlar-Vellum Graphite. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en instalaciones afectadas de Ashlar-Vellum Graphite. Se requiere interacción del usuario para explotar esta vulnerabilidad, ya que el objetivo debe visitar una página maliciosa o abrir un archivo malicioso. La falla específica existe dentro del análisis de archivos VC6. El problema resulta de la falta de validación adecuada de la longitud de los datos proporcionados por el usuario antes de copiarlos a un búfer basado en pila. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual. Fue ZDI-CAN-25463.

Information

Published : 2025-09-17 21:15

Updated : 2026-09-26 00:10

NVD link : CVE-2025-7979

Mitre link : CVE-2025-7979

CVE.ORG link : CVE-2025-7979

JSON object : View

Products Affected

ashlar

graphite

CWE

CWE-121

Stack-based Buffer Overflow

{"id": "CVE-2025-7979", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-7979", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2025-09-18T14:32:41.705430Z"}}], "cvssMetricV30": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "zdi-disclosures@trendmicro.com", "affectedData": [{"vendor": "Ashlar-Vellum", "product": "Graphite", "versions": [{"status": "affected", "version": "13_SE_13048"}], "defaultStatus": "unknown"}]}], "published": "2025-09-17T21:15:38.950", "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-633/", "tags": ["Third Party Advisory"], "source": "zdi-disclosures@trendmicro.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "Ashlar-Vellum Graphite VC6 File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Graphite. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of VC6 files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25463."}, {"lang": "es", "value": "Vulnerabilidad de Ejecuci\u00f3n Remota de C\u00f3digo por Desbordamiento de B\u00fafer Basado en Pila en el An\u00e1lisis de Archivos VC6 de Ashlar-Vellum Graphite. Esta vulnerabilidad permite a atacantes remotos ejecutar c\u00f3digo arbitrario en instalaciones afectadas de Ashlar-Vellum Graphite. Se requiere interacci\u00f3n del usuario para explotar esta vulnerabilidad, ya que el objetivo debe visitar una p\u00e1gina maliciosa o abrir un archivo malicioso.\n\nLa falla espec\u00edfica existe dentro del an\u00e1lisis de archivos VC6. El problema resulta de la falta de validaci\u00f3n adecuada de la longitud de los datos proporcionados por el usuario antes de copiarlos a un b\u00fafer basado en pila. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto del proceso actual. Fue ZDI-CAN-25463."}], "lastModified": "2026-09-26T00:10:00.127", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:ashlar:graphite:13.0.48:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D5591DA-62EF-4A3D-8CC4-35767964F951"}], "operator": "OR"}]}], "sourceIdentifier": "zdi-disclosures@trendmicro.com"}