{"id":"CVE-2026-80709","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80709","summary":"s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/zcrypt: Fix wrong domain value verification with EP11 CPRBs\n\nThere is a wrong upper limit check for the domain value when an EP11\nCPRB is processed for sending to a crypto card. This check is only\nactive on custom device nodes but may lead to access heap memory\nbehind perms->adm when an administrative CPRB is sent.\nAdd correct limit (AP_DOMAINS = 256) checking to fix this.","published":"2026-08-28T06:53:09.439Z","modified":"2026-08-30T03:45:29.811039162Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.1.183"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1223477ca88e2396eca440919d0ca8754df79bd5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4589f742718d0256ea6dd1f5a78be6e689bdb8aa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/672b12940e3f1336dfed5287412a71500adf2a76"},{"type":"WEB","url":"https://git.kernel.org/stable/c/983279d7f86ade73db86f886e09172dd567031b5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b505dcc8307d64468b463dfad45a03bf865c637e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80709.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80709"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-30T03:45:29.811039162Z"}}