{"id":"CVE-2026-111126","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111126","generatedAt":"2026-10-28T02:24:18.718Z","title":"catdoc through 0.95 contains an out-of-bounds read vulnerability in the MULRK record handler of process_item() in src/xlsparse.c that allows attackers to read past the static rec buffer via a crafted end column.","description":"catdoc through 0.95 contains an out-of-bounds read vulnerability in the MULRK record handler of process_item() in src/xlsparse.c that allows attackers to read past the static rec buffer via a crafted end column. Attackers can supply a crafted .xls workbook or BIFF stream with a large endcol to xls2csv to disclose adjacent process memory as CSV cells or crash the process.","published":"2026-10-15T19:17:26.000Z","lastModified":"2026-10-16T18:25:45.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-125"],"affected":[],"epss":{"score":0.00197,"percentile":0.09386,"date":"2026-10-26","history":[{"date":"2026-10-16","score":0.002,"percentile":0.09239}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-15T19:17:26.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-10-15T19:17:25.923Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://github.com/vbwagner/catdoc","source":"disclosure@vulncheck.com"},{"url":"https://github.com/vbwagner/catdoc/blob/38a2807d22ce1a08bc39b94e9072a9f8f52cd86f/src/xlsparse.c#L314-L328","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/catdoc-xls-mulrk-endcol-and-string-count-oob-read","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/catdoc-through-0.95-out-of-bounds-read-in-xls2csv-mulrk-record-handler","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/catdoc-xls-mulrk-endcol-and-string-count-oob-read","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111126","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}