{
  "cveId": "CVE-2026-12617",
  "url": "https://patchblox.com/security/cve/CVE-2026-12617",
  "summary": "CVE-2026-12617 is fixed in 20 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": "Record ordering based unexpected exit with CNAME or DNAME",
  "description": "The issue is unexpected program termination based on ordering and/or specific content in responses to queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record below the DNAME to the resolver, and the authoritative server responds positively to the A query but delays the DNAME response and later responds negatively, \u0060named\u0060 may quit unexpectedly. Or, if a client queries for a CNAME and A record for the same name to the resolver, and the authoritative server responds positively to the A query but delays the CNAME response and later responds with a self-referential CNAME, the same failure may occur. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.18.11-S1 through 9.18.50-S1, 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": "Reachable Assertion",
  "epss": 0.00524,
  "epssPercentile": 0.44701,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-12617",
  "fixes": [
    {
      "platform": "linux",
      "product": "bind",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "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 15.6",
      "fixedVersion": "9.18.50-150600.3.32.1",
      "fix": "SUSE-SU-2026:3452-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3452-1",
      "released": "2026-08-03T11:34:55Z"
    },
    {
      "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": "bind-chroot",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-devel",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-dnssec-utils",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-dnssec-utils-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-doc",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-libs",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-libs-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-license",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-utils",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind-utils-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "32:9.18.50-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2040",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2040",
      "released": "2026-08-03T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bind9",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:9.18.49-1~deb12u2",
      "fix": "DEBIAN-CVE-2026-12617",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-12617",
      "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-2026-12617",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-12617",
      "released": "2026-07-23T13:24:19Z"
    },
    {
      "platform": "linux",
      "product": "bind9",
      "release": "Debian 14",
      "fixedVersion": "1:9.20.26-1",
      "fix": "DEBIAN-CVE-2026-12617",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-12617",
      "released": "2026-07-23T13:24:19Z"
    },
    {
      "platform": "linux",
      "product": "bind9",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:9.18.39-0ubuntu0.22.04.5",
      "fix": "bind9 1:9.18.39-0ubuntu0.22.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-bind9-1-9.18.39-0ubuntu0.22.04.5",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "platform": "linux",
      "product": "bind9",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:9.18.39-0ubuntu0.24.04.6",
      "fix": "bind9 1:9.18.39-0ubuntu0.24.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-bind9-1-9.18.39-0ubuntu0.24.04.6",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "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 22.04.1 LTS (jammy)",
      "fixedVersion": "1:9.18.39-0ubuntu0.22.04.5",
      "fix": "bind9-dnsutils 1:9.18.39-0ubuntu0.22.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-bind9-dnsutils-1-9.18.39-0ubuntu0.22.04.5",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "platform": "linux",
      "product": "bind9-dnsutils",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:9.18.39-0ubuntu0.24.04.6",
      "fix": "bind9-dnsutils 1:9.18.39-0ubuntu0.24.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-bind9-dnsutils-1-9.18.39-0ubuntu0.24.04.6",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "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 22.04.1 LTS (jammy)",
      "fixedVersion": "1:9.18.39-0ubuntu0.22.04.5",
      "fix": "bind9-host 1:9.18.39-0ubuntu0.22.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-bind9-host-1-9.18.39-0ubuntu0.22.04.5",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "platform": "linux",
      "product": "bind9-host",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:9.18.39-0ubuntu0.24.04.6",
      "fix": "bind9-host 1:9.18.39-0ubuntu0.24.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-bind9-host-1-9.18.39-0ubuntu0.24.04.6",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "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 22.04.1 LTS (jammy)",
      "fixedVersion": "1:9.18.39-0ubuntu0.22.04.5",
      "fix": "bind9-libs 1:9.18.39-0ubuntu0.22.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-bind9-libs-1-9.18.39-0ubuntu0.22.04.5",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "platform": "linux",
      "product": "bind9-libs",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:9.18.39-0ubuntu0.24.04.6",
      "fix": "bind9-libs 1:9.18.39-0ubuntu0.24.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-bind9-libs-1-9.18.39-0ubuntu0.24.04.6",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "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 22.04.1 LTS (jammy)",
      "fixedVersion": "1:9.18.39-0ubuntu0.22.04.5",
      "fix": "bind9-utils 1:9.18.39-0ubuntu0.22.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-bind9-utils-1-9.18.39-0ubuntu0.22.04.5",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "platform": "linux",
      "product": "bind9-utils",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:9.18.39-0ubuntu0.24.04.6",
      "fix": "bind9-utils 1:9.18.39-0ubuntu0.24.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-bind9-utils-1-9.18.39-0ubuntu0.24.04.6",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "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"
    },
    {
      "platform": "linux",
      "product": "bind9utils",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:9.18.39-0ubuntu0.22.04.5",
      "fix": "bind9utils 1:9.18.39-0ubuntu0.22.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-bind9utils-1-9.18.39-0ubuntu0.22.04.5",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "platform": "linux",
      "product": "bind9utils",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:9.18.39-0ubuntu0.24.04.6",
      "fix": "bind9utils 1:9.18.39-0ubuntu0.24.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-bind9utils-1-9.18.39-0ubuntu0.24.04.6",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "platform": "linux",
      "product": "dnsutils",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:9.18.39-0ubuntu0.22.04.5",
      "fix": "dnsutils 1:9.18.39-0ubuntu0.22.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-dnsutils-1-9.18.39-0ubuntu0.22.04.5",
      "released": "2026-08-20T23:27:20Z"
    },
    {
      "platform": "linux",
      "product": "dnsutils",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:9.18.39-0ubuntu0.24.04.6",
      "fix": "dnsutils 1:9.18.39-0ubuntu0.24.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-dnsutils-1-9.18.39-0ubuntu0.24.04.6",
      "released": "2026-08-20T23:27:20Z"
    }
  ],
  "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"
  }
}