{"id":"CVE-2025-2017","aliases":["EUVD-2025-7461","GHSA-w6jf-6fg2-jpjx"],"status":"published","title":"Ashlar-Vellum Cobalt CO File Parsing Buffer Overflow Remote Code Execution Vulnerability","description":"Ashlar-Vellum Cobalt CO File Parsing 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.\n\nThe specific flaw exists within the parsing of CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25240.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-07","score":0.00272,"percentile":0.19711,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2025-03-11T20:42:51Z","modified":"2026-06-17T09:06:05Z","products":[{"vendor":"ashlar","product":"cobalt"},{"vendor":"ashlar-vellum","product":"cobalt"}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-121/","tags":["x_research-advisory","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-2017"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-121"},{"url":"https://github.com/advisories/GHSA-w6jf-6fg2-jpjx"}],"sources":{"cve":[{"id":"CVE-2025-2017","title":"Ashlar-Vellum Cobalt CO File Parsing Buffer Overflow Remote Code Execution Vulnerability","description":"Ashlar-Vellum Cobalt CO File Parsing 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.\n\nThe specific flaw exists within the parsing of CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25240.","status":"published","published":"2025-03-11T20:42:51.738Z","modified":"2025-03-12T14:41:31.42Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:32:38.351095Z"}],"euvd":[{"id":"EUVD-2025-7461","description":"Ashlar-Vellum Cobalt CO File Parsing 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.\n\nThe specific flaw exists within the parsing of CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25240.","status":"published","published":"2025-03-11T20:42:51Z","modified":"2025-03-12T14:41:31Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:53:06.438267Z"}],"ghsa":[{"id":"GHSA-w6jf-6fg2-jpjx","title":"Ashlar-Vellum Cobalt CO File Parsing Buffer Overflow Remote Code Execution Vulnerability. This...","description":"Ashlar-Vellum Cobalt CO File Parsing 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.\n\nThe specific flaw exists within the parsing of CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25240.","status":"published","published":"2025-03-11T21:30:41Z","modified":"2025-03-11T21:30:48Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:00:14.411319Z"}],"nvd":[{"id":"CVE-2025-2017","description":"Ashlar-Vellum Cobalt CO File Parsing 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.\n\nThe specific flaw exists within the parsing of CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25240.","status":"published","published":"2025-03-11T21:15:53.05Z","modified":"2026-06-17T09:06:05.047Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:10:53.93104Z"}]}}