{
  "fix": "OPENSUSE-SU-2026:21533-1",
  "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21533-1",
  "summary": "OPENSUSE-SU-2026:21533-1, released August 5, 2026, fixes 7 CVEs in dnsdist (version 1.9.15-160000.1.1). None of them is reported as exploited. Patch Radar priority: Routine.",
  "platform": "linux",
  "type": "advisory",
  "title": "dnsdist security update",
  "released": "2026-08-05T09:13:07Z",
  "priority": "Routine",
  "priorityTier": 4,
  "priorityReason": "Closes 7 CVEs, none high severity",
  "supported": true,
  "cveCount": 7,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00739,
  "maxCvss": 5.3,
  "vendorAdvisory": "https://osv.dev/vulnerability/openSUSE-SU-2026:21533-1",
  "appliesTo": [
    {
      "product": "dnsdist",
      "productUrl": "https://patchblox.com/security/product/linux/dnsdist",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.9.15-160000.1.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-40210",
      "url": "https://patchblox.com/security/cve/CVE-2026-40210",
      "title": "dnsdist: An out-of-bounds read might happen when SetMacAddrAction is used, potentially resulting in uninitialized memory being...",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 4.8,
      "epss": 0.00739,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-40209",
      "url": "https://patchblox.com/security/cve/CVE-2026-40209",
      "title": "dnsdist: An attacker might be able to cause outgoing TCP connections to backend to be stuck until a timeout occurs instead of...",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.3,
      "epss": 0.007,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-40211",
      "url": "https://patchblox.com/security/cve/CVE-2026-40211",
      "title": "dnsdist: An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being fr...",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.3,
      "epss": 0.007,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-42005",
      "url": "https://patchblox.com/security/cve/CVE-2026-42005",
      "title": "dnsdist: An attacker can send a web request that causes unlimited memory  allocation in the internal web server, leading to a...",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 4.3,
      "epss": 0.00625,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-40208",
      "url": "https://patchblox.com/security/cve/CVE-2026-40208",
      "title": "dnsdist: An attacker might be able to delay the processing of DoH3 queries by sending DoH3 GET queries with an invalid DATA fr...",
      "priority": "Routine",
      "severity": "low",
      "cvss": 3.7,
      "epss": 0.00402,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-40011",
      "url": "https://patchblox.com/security/cve/CVE-2026-40011",
      "title": "dnsdist: An attacker sending a large number of crafted DNS queries might be able to trigger a dynamic block being inserted wit...",
      "priority": "Routine",
      "severity": "low",
      "cvss": 3.7,
      "epss": 0.00225,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-42004",
      "url": "https://patchblox.com/security/cve/CVE-2026-42004",
      "title": "dnsdist: An attacker can send a crafted EDNS OPT record that will be ignored by DNSdist\u2019s filtering rules, but will be rewritt...",
      "priority": "Routine",
      "severity": "low",
      "cvss": 3.7,
      "epss": 0.00225,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-10T07:50:38Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}