{"id":"CVE-2026-2100","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-2100","generatedAt":"2026-10-28T00:19:39.894Z","title":"A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL.","description":"A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.","published":"2026-03-26T21:17:04.000Z","lastModified":"2026-10-14T20:17:36.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-824"],"affected":["p11-kit project/p11-kit","redhat/hardened images","redhat/enterprise linux"],"epss":{"score":0.01311,"percentile":0.70457,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:18143","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:18599","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:21275","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:22634","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:27998","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:58981","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:7065","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72502","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82304","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82322","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82347","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82354","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82372","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82857","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82888","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-2100","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2437308","tags":["Issue Tracking","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://github.com/p11-glue/p11-kit/pull/740","tags":["Issue Tracking","Patch"],"source":"secalert@redhat.com"},{"url":"https://github.com/p11-glue/p11-kit/releases/tag/0.26.2","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-2100","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."}