{"id":"CVE-2025-2866","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-2866","generatedAt":"2026-10-28T03:26:16.545Z","title":"Improper Verification of Cryptographic Signature vulnerability in LibreOffice allows PDF Signature Spoofing by Improper Validation.","description":"Improper Verification of Cryptographic Signature vulnerability in LibreOffice allows PDF Signature Spoofing by Improper Validation.\n\n\n\n\nIn the affected versions of LibreOffice a flaw in the verification code for adbe.pkcs7.sha1 signatures could cause invalid signatures to be accepted as valid\n\n\n\n\nThis issue affects LibreOffice: from 24.8 before < 24.8.6, from 25.2 before < 25.2.2.","published":"2025-04-27T19:15:15.000Z","lastModified":"2026-06-17T09:07:46.000Z","status":"Modified","sourceIdentifier":"security@documentfoundation.org","cvss":{"version":"4.0","score":2.4,"severity":"LOW","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:L/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-347"],"affected":["libreoffice/libreoffice"],"epss":{"score":0.00117,"percentile":0.01669,"date":"2026-10-26","history":[]},"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 (0.12%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.libreoffice.org/about-us/security/advisories/cve-2025-2866","tags":["Vendor Advisory"],"source":"security@documentfoundation.org"},{"url":"https://lists.debian.org/debian-lts-announce/2025/06/msg00002.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-2866","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."}