{
  "cveId": "CVE-2026-80709",
  "url": "https://patchblox.com/security/cve/CVE-2026-80709",
  "summary": "CVE-2026-80709 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-80709, released August 29, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs  There is a wrong upper limit check for the domain value when an EP11 CPRB is processed for sending to a crypto card. This check is only active on custom device nodes but may lead to access heap memory behind perms-\u003Eadm when an administrative CPRB is sent. Add correct limit (AP_DOMAINS = 256) checking to fix this.",
  "published": "2026-08-28T08:16:56Z",
  "severity": "Critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00176,
  "epssPercentile": 0.07132,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80709",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.187-1",
      "fix": "DEBIAN-CVE-2026-80709",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80709",
      "released": "2026-08-29T00:46:20Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.105-1",
      "fix": "DEBIAN-CVE-2026-80709",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80709",
      "released": "2026-08-29T00:46:20Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.8-1",
      "fix": "DEBIAN-CVE-2026-80709",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80709",
      "released": "2026-08-29T00:46:20Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.107-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-80709",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80709",
      "released": "2026-08-29T00:46:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}