CVE-2025-2019

Ashlar-Vellum Cobalt VC6 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 VC6 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-25252.

Score

CVSS 3.0 7.8 High

Status

Analyzed - zdi-disclosures@trendmicro.com

Published

2025-03-11

Last modified

2025-03-12

Weaknesses

CWE-122

Affected products

• Cobalt (Ashlar)
• Cobalt (Ashlar-vellum)

References

• https://www.zerodayinitiative.com/advisories/ZDI-25-123/