CVE-2025-2021

Ashlar-Vellum Cobalt XE File Parsing Integer Overflow Remote Code Execution Vulnerability

Published Mar 11, 2025 CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Description
Ashlar-Vellum Cobalt XE File Parsing Integer 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 XE files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25264.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-7465 Ashlar-Vellum Cobalt XE File Parsing Integer 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 XE files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25264.
History
Type Values Removed Values Added
CPEs cpe:2.3:a:ashlar:cobalt:1204.91:*:*:*:*:*:*:* cpe:2.3:a:ashlar:cobalt:12.0.1204.91:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics epss

{'score': 0.0004}

epss

{'score': 0.0006}

Type Values Removed Values Added
First Time appeared Ashlar
Ashlar cobalt
CPEs cpe:2.3:a:ashlar:cobalt:1204.91:*:*:*:*:*:*:*
Vendors & Products Ashlar
Ashlar cobalt
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description Ashlar-Vellum Cobalt XE File Parsing Integer 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 XE files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25264.
Title Ashlar-Vellum Cobalt XE File Parsing Integer Overflow Remote Code Execution Vulnerability
Weaknesses CWE-190
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
Mar 12, 2025, 2:41 PM
Reserved
Mar 5, 2025, 11:40 PM
Status
Analyzed
Published
Mar 11, 2025, 9:15 PM
Modified
Jun 17, 2026, 9:06 AM