{
  "cveId": "CVE-2026-12969",
  "url": "https://patchblox.com/security/cve/CVE-2026-12969",
  "summary": "CVE-2026-12969 is fixed in 4 products on 1 platform, first by dnsmasq 2.92-1ubuntu0.4, released June 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation",
  "description": "An out-of-bounds read vulnerability exists in dnsmasq\u0027s find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.",
  "published": "2026-06-23T07:17:00Z",
  "severity": "Moderate",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
  "cwe": "Out-of-bounds Read",
  "epss": 0.00256,
  "epssPercentile": 0.17372,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-12969",
  "fixes": [
    {
      "platform": "linux",
      "product": "dnsmasq",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.91-1\u002Bdeb13u2",
      "fix": "DEBIAN-CVE-2026-12969",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-12969",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq",
      "release": "Debian 14",
      "fixedVersion": "2.93-1",
      "fix": "DEBIAN-CVE-2026-12969",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-12969",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.90-0ubuntu0.18.04.1\u002Besm4",
      "fix": "dnsmasq 2.90-0ubuntu0.18.04.1\u002Besm4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-dnsmasq-2.90-0ubuntu0.18.04.1-esm4",
      "released": "2026-07-18T12:42:57Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.90-0ubuntu0.20.04.1\u002Besm3",
      "fix": "dnsmasq 2.90-0ubuntu0.20.04.1\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-dnsmasq-2.90-0ubuntu0.20.04.1-esm3",
      "released": "2026-07-18T12:43:00Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.90-0ubuntu0.22.04.4",
      "fix": "dnsmasq 2.90-0ubuntu0.22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-dnsmasq-2.90-0ubuntu0.22.04.4",
      "released": "2026-07-18T12:43:06Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.90-2ubuntu0.4",
      "fix": "dnsmasq 2.90-2ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-dnsmasq-2.90-2ubuntu0.4",
      "released": "2026-07-18T12:43:09Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.92-1ubuntu0.4",
      "fix": "dnsmasq 2.92-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-dnsmasq-2.92-1ubuntu0.4",
      "released": "2026-06-23T07:17:00Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq",
      "release": "sles 15.6",
      "fixedVersion": "2.93-150400.16.17.1",
      "fix": "SUSE-SU-2026:3028-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3028-1",
      "released": "2026-07-15T09:51:37Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq",
      "release": "sles 15.7",
      "fixedVersion": "2.93-150400.16.17.1",
      "fix": "SUSE-SU-2026:3028-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3028-1",
      "released": "2026-07-15T09:51:37Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.90-0ubuntu0.18.04.1\u002Besm4",
      "fix": "dnsmasq-base 2.90-0ubuntu0.18.04.1\u002Besm4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-dnsmasq-base-2.90-0ubuntu0.18.04.1-esm4",
      "released": "2026-07-18T12:42:57Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.90-0ubuntu0.20.04.1\u002Besm3",
      "fix": "dnsmasq-base 2.90-0ubuntu0.20.04.1\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-dnsmasq-base-2.90-0ubuntu0.20.04.1-esm3",
      "released": "2026-07-18T12:43:00Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.90-0ubuntu0.22.04.4",
      "fix": "dnsmasq-base 2.90-0ubuntu0.22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-dnsmasq-base-2.90-0ubuntu0.22.04.4",
      "released": "2026-07-18T12:43:06Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.90-2ubuntu0.4",
      "fix": "dnsmasq-base 2.90-2ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-dnsmasq-base-2.90-2ubuntu0.4",
      "released": "2026-07-18T12:43:09Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.92-1ubuntu0.4",
      "fix": "dnsmasq-base 2.92-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-dnsmasq-base-2.92-1ubuntu0.4",
      "released": "2026-06-23T07:17:00Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base-lua",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.90-0ubuntu0.18.04.1\u002Besm4",
      "fix": "dnsmasq-base-lua 2.90-0ubuntu0.18.04.1\u002Besm4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-dnsmasq-base-lua-2.90-0ubuntu0.18.04.1-esm4",
      "released": "2026-07-18T12:42:57Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base-lua",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.90-0ubuntu0.20.04.1\u002Besm3",
      "fix": "dnsmasq-base-lua 2.90-0ubuntu0.20.04.1\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-dnsmasq-base-lua-2.90-0ubuntu0.20.04.1-esm3",
      "released": "2026-07-18T12:43:00Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base-lua",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.90-0ubuntu0.22.04.4",
      "fix": "dnsmasq-base-lua 2.90-0ubuntu0.22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-dnsmasq-base-lua-2.90-0ubuntu0.22.04.4",
      "released": "2026-07-18T12:43:06Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base-lua",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.90-2ubuntu0.4",
      "fix": "dnsmasq-base-lua 2.90-2ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-dnsmasq-base-lua-2.90-2ubuntu0.4",
      "released": "2026-07-18T12:43:09Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-base-lua",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.92-1ubuntu0.4",
      "fix": "dnsmasq-base-lua 2.92-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-dnsmasq-base-lua-2.92-1ubuntu0.4",
      "released": "2026-06-23T07:17:00Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-utils",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.90-0ubuntu0.18.04.1\u002Besm4",
      "fix": "dnsmasq-utils 2.90-0ubuntu0.18.04.1\u002Besm4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-dnsmasq-utils-2.90-0ubuntu0.18.04.1-esm4",
      "released": "2026-07-18T12:42:57Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-utils",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.90-0ubuntu0.20.04.1\u002Besm3",
      "fix": "dnsmasq-utils 2.90-0ubuntu0.20.04.1\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-dnsmasq-utils-2.90-0ubuntu0.20.04.1-esm3",
      "released": "2026-07-18T12:43:00Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-utils",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.90-0ubuntu0.22.04.4",
      "fix": "dnsmasq-utils 2.90-0ubuntu0.22.04.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-dnsmasq-utils-2.90-0ubuntu0.22.04.4",
      "released": "2026-07-18T12:43:06Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-utils",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.90-2ubuntu0.4",
      "fix": "dnsmasq-utils 2.90-2ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-dnsmasq-utils-2.90-2ubuntu0.4",
      "released": "2026-07-18T12:43:09Z"
    },
    {
      "platform": "linux",
      "product": "dnsmasq-utils",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.92-1ubuntu0.4",
      "fix": "dnsmasq-utils 2.92-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-dnsmasq-utils-2.92-1ubuntu0.4",
      "released": "2026-06-23T07:17:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}