{"id":"CVE-2025-30258","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-30258","generatedAt":"2026-10-28T01:14:13.471Z","title":"In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a…","description":"In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a \"verification DoS.\"","published":"2025-03-19T20:15:20.000Z","lastModified":"2026-06-17T09:08:25.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":4.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-754"],"affected":["gnupg/gnupg"],"epss":{"score":0.00194,"percentile":0.09027,"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 (0.19%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://dev.gnupg.org/T7527","tags":["Exploit","Issue Tracking"],"source":"cve@mitre.org"},{"url":"https://dev.gnupg.org/rG48978ccb4e20866472ef18436a32744350a65158","tags":["Issue Tracking"],"source":"cve@mitre.org"},{"url":"https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html","tags":["Mailing List","Release Notes","Vendor Advisory"],"source":"cve@mitre.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-30258","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."}