{"id":"CVE-2026-24881","details":"In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however, there is also memory corruption that could lead to remote code execution.","modified":"2026-06-18T03:57:38.821247828Z","published":"2026-01-27T18:36:56.727Z","related":["openSUSE-SU-2026:10112-1"],"database_specific":{"cwe_ids":["CWE-121"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24881.json","cna_assigner":"mitre","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"2.5.13"},{"fixed":"2.5.17"}]},{"source":"CPE_FIELD","extracted_events":[{"introduced":"2.5.13"},{"fixed":"2.5.17"}]},{"source":"DESCRIPTION","extracted_events":[{"fixed":"2.5.17"}]}]},"references":[{"type":"WEB","url":"https://dev.gnupg.org/T8044"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2026/01/27/8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24881.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24881"}],"affected":[{"ranges":[{"type":"GIT","repo":"git://git.gnupg.org/gpg4win.git","events":[{"introduced":"494fe73653aba708306345c11c1350ad259541e3"},{"fixed":"83608d53f6e58de1c593b49d168ac30aa53a4cd6"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:gpg4win:gpg4win:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"5.0.0"},{"fixed":"5.0.1"}]}}],"versions":["gpg4win-5.0.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-24881.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}