Ashlar-Vellum Cobalt AR File Parser out-of-bounds

Summaryinfo

A vulnerability, which was classified as critical, was found in Ashlar-Vellum Cobalt. Impacted is an unknown function of the component AR File Parser. Executing a manipulation can lead to out-of-bounds. The identification of this vulnerability is CVE-2025-7994. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Ashlar-Vellum Cobalt (affected version not known) and classified as critical. This vulnerability affects some unknown functionality of the component AR File Parser. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Ashlar-Vellum Cobalt AR 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 AR files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25976.

The advisory is available at zerodayinitiative.com. This vulnerability was named CVE-2025-7994. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Ashlar-Vellum

Name

• Cobalt

License

• commercial

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CPE 2.2info

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