{"id":"CVE-2025-2020","state":"PUBLISHED","title":"Ashlar-Vellum Cobalt VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability","description":"Ashlar-Vellum Cobalt VC6 File Parsing Out-Of-Bounds Write 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 VC6 files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25254.","publishedAt":"2025-03-11T20:43:06.042Z","updatedAt":"2025-03-12T14:41:17.693Z","severity":{"score":7.8,"label":"High","version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"zdi"},"assigner":"zdi","products":["Ashlar-Vellum Cobalt"],"affected":[{"vendor":"Ashlar-Vellum","product":"Cobalt","defaultStatus":"unknown","versions":[{"version":"1204.91","status":"affected"}]}],"references":["https://www.zerodayinitiative.com/advisories/ZDI-25-124/"],"weaknesses":["CWE-787"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/2xxx/CVE-2025-2020.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-2020","state":"PUBLISHED","datePublished":"2025-03-11T20:43:06.042Z","dateUpdated":"2025-03-12T14:41:17.693Z","assignerShortName":"zdi","assignerOrgId":"99f1926a-a320-47d8-bbb5-42feb611262e","dateReserved":"2025-03-05T23:40:23.518Z"},"containers":{"cna":{"title":"Ashlar-Vellum Cobalt VC6 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability","descriptions":[{"lang":"en","value":"Ashlar-Vellum Cobalt VC6 File Parsing Out-Of-Bounds Write 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 VC6 files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25254."}],"affected":[{"vendor":"Ashlar-Vellum","product":"Cobalt","defaultStatus":"unknown","versions":[{"version":"1204.91","status":"affected"}]}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-124/","name":"ZDI-25-124","tags":["x_research-advisory"]}],"metrics":[{"format":"CVSS","cvssV3_0":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","lang":"en","description":"CWE-787: Out-of-bounds Write","type":"CWE"}]}],"providerMetadata":{"shortName":"zdi","orgId":"99f1926a-a320-47d8-bbb5-42feb611262e","dateUpdated":"2025-03-11T20:43:06.042Z"},"dateAssigned":"2025-03-05T23:40:23.544Z","datePublic":"2025-03-10T22:01:42.945Z","source":{"lang":"en","value":"Rocco Calvi (@TecR0c) with TecSecurity"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-03-12T14:25:46.811510Z","id":"CVE-2025-2020","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-03-12T14:41:17.693Z"}}]}}}