{"id":"CVE-2026-24881","aliases":["EUVD-2026-4768","GHSA-5w36-x85h-pphm","JLSEC-2026-564","openSUSE-SU-2026:10112-1"],"status":"published","title":"In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized...","description":"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.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01813,"percentile":0.78965,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-121"],"published":"2026-01-27T18:36:56Z","modified":"2026-10-28T02:30:51Z","fixes":[{"ecosystem":"Julia","package":"GnuPG_jll","fixed_in":["2.5.17+0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Julia","package":"GnuPG_jll","ranges":[{"type":"SEMVER","events":[{"introduced":"2.5.16+0"},{"fixed":"2.5.17+0"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"gpg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.17-1.1"}]}],"bundled":3}],"products":[{"vendor":"gnupg","product":"gnupg"},{"vendor":"gpg4win","product":"gpg4win"},{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://www.openwall.com/lists/oss-security/2026/01/27/8","tags":["Mailing List","Third Party Advisory","web"]},{"url":"https://dev.gnupg.org/T8044","tags":["Exploit","Product","web"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-24881","tags":["vdb-entry","x_refsource_REDHAT","advisory","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2433480","tags":["issue-tracking","x_refsource_REDHAT","report","web"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24881.json","tags":["x_sadp-csaf-vex","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24881","tags":["advisory","web"]},{"url":"https://github.com/advisories/GHSA-5w36-x85h-pphm","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24881.json","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-24881","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-24882","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-24883","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-24881","description":"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.","status":"published","published":"2026-01-27T18:36:56.727Z","modified":"2026-07-15T01:16:45.277Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-121","CWE-121"],"updated_at":"2026-11-02T14:19:50.24628Z"}],"euvd":[{"id":"EUVD-2026-4768","description":"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.","status":"published","published":"2026-01-27T18:36:56Z","modified":"2026-07-15T01:16:45Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:19:55.318488Z"}],"ghsa":[{"id":"GHSA-5w36-x85h-pphm","title":"In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized...","description":"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.","status":"published","published":"2026-01-27T21:31:49Z","modified":"2026-06-30T03:36:31Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:09:04.668745Z"}],"nvd":[{"id":"CVE-2026-24881","description":"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.","status":"published","published":"2026-01-27T19:16:16.517Z","modified":"2026-07-15T02:18:52.1Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:04.769088Z"}],"osv":[{"id":"CVE-2026-24881","description":"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.","status":"published","published":"2026-01-27T18:36:56.727Z","modified":"2026-10-28T02:30:51.700550565Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:44:59.438965Z"},{"id":"JLSEC-2026-564","title":"In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped...","description":"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.","status":"published","published":"2026-05-27T18:18:39.624Z","modified":"2026-07-25T18:24:38.457484547Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:47:18.573531Z"},{"id":"openSUSE-SU-2026:10112-1","title":"dirmngr-2.5.17-1.1 on GA media","description":"These are all security issues fixed in the dirmngr-2.5.17-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-01-29T00:00:00Z","modified":"2026-03-23T04:54:28.086103Z","updated_at":"2026-11-02T16:58:38.101535Z"}]}}