{"id":"CVE-2026-111140","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111140","generatedAt":"2026-10-28T04:14:43.713Z","title":"libregf through 20260526 contains a heap out-of-bounds read in libregf_value_item_read_value_data() because it bounds value data size without subtracting the 4-byte old-format cell offset.","description":"libregf through 20260526 contains a heap out-of-bounds read in libregf_value_item_read_value_data() because it bounds value data size without subtracting the 4-byte old-format cell offset. Attackers can supply a crafted version 1.0/1.1 REGF hive with a value data cell ending its hive bin to leak adjacent heap bytes or crash parsers like regfexport and plaso.","published":"2026-10-15T19:17:28.000Z","lastModified":"2026-10-21T02:17:04.000Z","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":0.00127,"percentile":0.02385,"date":"2026-10-27","history":[{"date":"2026-10-16","score":0.00129,"percentile":0.02214}]},"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 (0.13%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-15T19:17:28.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-10-15T19:17:28.127Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://github.com/libyal/libregf","source":"disclosure@vulncheck.com"},{"url":"https://github.com/libyal/libregf/blob/1a4bd856484263caa4a5e0d6ba377c3dc69150c7/libregf/libregf_value_item.c#L789-L935","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/libregf-value-data-offset-oob-read","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/libregf-through-20260526-heap-out-of-bounds-read-via-libregf-value-item-read-value-data","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111140","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."}