CVE-2025-7985
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
An integer overflow vulnerability in Ashlar-Vellum Cobalt during VC6 file parsing allows remote code execution. User interaction is required — the target must open a malicious file or visit a malicious page. The flaw stems from lack of validation of user-supplied data, resulting in an integer overflow before allocating a buffer.
Risk Assessment
An attacker can execute arbitrary code in the context of the current process, potentially leading to full compromise of the user's workstation. This is especially relevant in engineering and design environments where CAD files from untrusted sources are opened.
Recommendation
Update Ashlar-Vellum Cobalt to the latest patched version and avoid opening VC6 files from untrusted sources. Consider restricting privileges of users who open design files.
Other vulnerabilities in Ashlar-Vellum Cobalt
See all- CVE-2026-19781High
Ashlar-Vellum Cobalt VS 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 in that the target must visit a malicious page or open a malicious file.
- CVE-2025-8006High
Remote code execution vulnerability in Ashlar-Vellum Cobalt when parsing XE files. It results from lack of validation of user-supplied data, leading to an out-of-bounds read past the end of an allocated data structure. Requires user interaction (visiting a malicious page or opening a malicious file).
- CVE-2025-8005High
Remote code execution vulnerability in Ashlar-Vellum Cobalt when parsing XE files. It results from lack of validation of user-supplied data, leading to a type confusion condition. Requires user interaction (visiting a malicious page or opening a malicious file).
- CVE-2025-8004High
Remote code execution vulnerability in Ashlar-Vellum Cobalt when parsing XE files. It results from lack of validation of user-supplied data, leading to an out-of-bounds read past the end of an allocated data structure. Requires user interaction (visiting a malicious page or opening a malicious file).
- CVE-2025-8003High
Remote code execution vulnerability in Ashlar-Vellum Cobalt when parsing CO files. It results from lack of validation of user-supplied data, leading to an out-of-bounds read past the end of an allocated data structure. Requires user interaction (visiting a malicious page or opening a malicious file).
- CVE-2025-8002High
Remote code execution vulnerability in Ashlar-Vellum Cobalt when parsing CO files. It results from lack of validation of user-supplied data, leading to a type confusion condition. Requires user interaction (visiting a malicious page or opening a malicious file).
- CVE-2025-8001High
Remote code execution vulnerability in Ashlar-Vellum Cobalt when parsing CO files. It results from lack of validation of user-supplied data, leading to a memory corruption condition. Requires user interaction (visiting a malicious page or opening a malicious file).
- CVE-2025-8000High
Remote code execution vulnerability in Ashlar-Vellum Cobalt when parsing LI files. It results from lack of validation of user-supplied data, leading to a type confusion condition. Requires user interaction (visiting a malicious page or opening a malicious file).
- CVE-2025-7999High
Remote code execution vulnerability in Ashlar-Vellum Cobalt when parsing AR files. It results from lack of validation of user-supplied data, leading to a type confusion condition. Requires user interaction (visiting a malicious page or opening a malicious file).
- CVE-2025-7998High
Remote code execution vulnerability in Ashlar-Vellum Cobalt when parsing CO files. It results from lack of validation of user-supplied data, leading to an out-of-bounds write past the end of an allocated data structure. Requires user interaction (visiting a malicious page or opening a malicious file).
Original NVD description (English source)
Ashlar-Vellum Cobalt VC6 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 VC6 files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25704.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

