{"affected":[{"defaultStatus":"unknown","product":"Cobalt","source":"CNA: zdi","vendor":"Ashlar-Vellum","versions":[{"status":"affected","version":"1204.207"}]}],"cveId":"CVE-2026-121752","cwes":["CWE-122"],"description":"Ashlar-Vellum Cobalt LI 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.\n\nThe specific flaw exists within the parsing of LI 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-28447.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.8,"severity":"high","source":"CNA: zdi","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.0"}],"modifiedAt":1794451889957,"publishedAt":1794451889957,"references":[{"source":"CNA: zdi","tags":["x_research-advisory"],"url":"https://www.zerodayinitiative.com/advisories/ZDI-26-871/"}],"remediation":[],"revision":"bf3fc17bcb2dadf1bee994d6135d3976139424ec8b3110442293ee261f362fa3","sources":[{"modifiedAt":1794451889957,"name":"CNA: zdi","retrievedAt":1794452944832,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121752"}],"ssvc":null,"status":"published","title":"Ashlar-Vellum Cobalt LI File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability","updatedAt":1794452944832}