CVE-2025-7977

Ashlar-Vellum Cobalt LI File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability

Published Sep 17, 2025 CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Description
Ashlar-Vellum Cobalt LI File Parsing Out-Of-Bounds Read 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 LI files. The issue results from the lack of proper validation of user-supplied data, which can result in a read before the start of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25354.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-29810 Ashlar-Vellum Cobalt LI File Parsing Out-Of-Bounds Read 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 LI files. The issue results from the lack of proper validation of user-supplied data, which can result in a read before the start of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25354.
History
Type Values Removed Values Added
CPEs cpe:2.3:a:ashlar:cobalt:12.0.1204.91:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ashlar
Ashlar cobalt
Vendors & Products Ashlar Vellum
Ashlar Vellum cobalt
Ashlar
Ashlar cobalt
Type Values Removed Values Added
First Time appeared Ashlar Vellum
Ashlar Vellum cobalt
Vendors & Products Ashlar Vellum
Ashlar Vellum cobalt
Type Values Removed Values Added
Description Ashlar-Vellum Cobalt LI File Parsing Out-Of-Bounds Read 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 LI files. The issue results from the lack of proper validation of user-supplied data, which can result in a read before the start of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25354.
Title Ashlar-Vellum Cobalt LI File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability
Weaknesses CWE-125
References
Metrics cvssV3_0

{'score': 7.8, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
zdi
Published
Updated
Sep 18, 2025, 2:48 PM
Reserved
Jul 21, 2025, 7:49 PM
Status
Analyzed
Published
Sep 17, 2025, 9:15 PM
Modified
Sep 26, 2026, 12:10 AM