{
  "cveId": "CVE-2026-11605",
  "url": "https://patchblox.com/security/cve/CVE-2026-11605",
  "summary": "CVE-2026-11605 is fixed in 6 products on 1 platform, first by bind9 1:9.20.24-1ubuntu0.2, released July 22, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Unnecessary validation of DNSSEC signed records",
  "description": "The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative server/zone which returns many valid but superfluous RRSIG records causes the validator to waste disproportionate CPU time. This issue affects BIND 9 versions 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, and 9.20.9-S1 through 9.20.24-S1.",
  "published": "2026-07-22T08:16:00Z",
  "severity": "Moderate",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cwe": "Incorrect Behavior Order: Early Amplification",
  "epss": 0.00672,
  "epssPercentile": 0.52329,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-11605",
  "fixes": [
    {
      "platform": "linux",
      "product": "bind",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "9.20.26-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21489-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21489-1",
      "released": "2026-07-30T10:43:08Z"
    },
    {
      "platform": "linux",
      "product": "bind",
      "release": "sles 15.7",
      "fixedVersion": "9.20.26-150700.3.29.1",
      "fix": "SUSE-SU-2026:3426-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3426-1",
      "released": "2026-07-30T11:12:12Z"
    },
    {
      "platform": "linux",
      "product": "bind9",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:9.18.49-1~deb12u2",
      "fix": "DEBIAN-CVE-2026-11605",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-11605",
      "released": "2026-07-23T13:24:19Z"
    },
    {
      "platform": "linux",
      "product": "bind9",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:9.20.26-1~deb13u1",
      "fix": "DEBIAN-CVE-2026-11605",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-11605",
      "released": "2026-07-23T13:24:19Z"
    },
    {
      "platform": "linux",
      "product": "bind9",
      "release": "Debian 14",
      "fixedVersion": "1:9.20.26-1",
      "fix": "DEBIAN-CVE-2026-11605",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-11605",
      "released": "2026-07-23T13:24:19Z"
    },
    {
      "platform": "linux",
      "product": "bind9",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1:9.20.24-1ubuntu0.2",
      "fix": "bind9 1:9.20.24-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-bind9-1-9.20.24-1ubuntu0.2",
      "released": "2026-07-22T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "bind9-dnsutils",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1:9.20.24-1ubuntu0.2",
      "fix": "bind9-dnsutils 1:9.20.24-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-bind9-dnsutils-1-9.20.24-1ubuntu0.2",
      "released": "2026-07-22T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "bind9-host",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1:9.20.24-1ubuntu0.2",
      "fix": "bind9-host 1:9.20.24-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-bind9-host-1-9.20.24-1ubuntu0.2",
      "released": "2026-07-22T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "bind9-libs",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1:9.20.24-1ubuntu0.2",
      "fix": "bind9-libs 1:9.20.24-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-bind9-libs-1-9.20.24-1ubuntu0.2",
      "released": "2026-07-22T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "bind9-utils",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1:9.20.24-1ubuntu0.2",
      "fix": "bind9-utils 1:9.20.24-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-bind9-utils-1-9.20.24-1ubuntu0.2",
      "released": "2026-07-22T08:16:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}