CVE-2025-11464

Ashlar-Vellum Cobalt CO File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. 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 CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26628.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

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-25-955/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ashlar:cobalt:12.2.1204.97:*:*:*:*:*:*:*

History

08 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad de Ejecución Remota de Código por Desbordamiento de Búfer Basado en Montículo en el Análisis de Archivos CO de Ashlar-Vellum Cobalt. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en instalaciones afectadas de Ashlar-Vellum Cobalt. 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 en el análisis de archivos CO. 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 montículo. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual. Fue ZDI-CAN-26628.

Information

Published : 2025-10-29 20:15

Updated : 2026-10-08 11:10

NVD link : CVE-2025-11464

Mitre link : CVE-2025-11464

CVE.ORG link : CVE-2025-11464

JSON object : View

Products Affected

ashlar

cobalt

CWE

CWE-122

Heap-based Buffer Overflow

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