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

04 Nov 2025, 21:27

Type	Values Removed	Values Added
CPE		cpe:2.3:a:ashlar:cobalt:12.2.1204.97:::::::*
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-25-955/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-25-955/ - Third Party Advisory
First Time		Ashlar Ashlar cobalt

29 Oct 2025, 20:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-29 20:15

Updated : 2025-11-04 21:27

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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