{
  "fix": "SUSE-SU-2026:4021-1",
  "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4021-1",
  "summary": "SUSE-SU-2026:4021-1, released September 7, 2026, fixes 6 CVEs in c-ares (version 1.34.8-150000.3.29.1). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "c-ares security update",
  "released": "2026-09-07T07:42:20Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-33630, high severity",
  "supported": true,
  "cveCount": 6,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00845,
  "maxCvss": 7.5,
  "vendorAdvisory": "https://osv.dev/vulnerability/SUSE-SU-2026:4021-1",
  "appliesTo": [
    {
      "product": "c-ares",
      "productUrl": "https://patchblox.com/security/product/linux/c-ares",
      "release": "sles 15.6",
      "fixedVersion": "1.34.8-150000.3.29.1",
      "supported": true
    },
    {
      "product": "c-ares",
      "productUrl": "https://patchblox.com/security/product/linux/c-ares",
      "release": "sles 15.7",
      "fixedVersion": "1.34.8-150000.3.29.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-33630",
      "url": "https://patchblox.com/security/cve/CVE-2026-33630",
      "title": "c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00845,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-31498",
      "url": "https://patchblox.com/security/cve/CVE-2025-31498",
      "title": "c-ares: use-after-free in read_answers() when process_answer() may re-enqueue a query (bsc#1240955).",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.3,
      "epss": 0.00602,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-69184",
      "url": "https://patchblox.com/security/cve/CVE-2026-69184",
      "title": "c-ares: CPU-exhaustion denial of service via unbounded DNS name compression pointer chains",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00479,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-25629",
      "url": "https://patchblox.com/security/cve/CVE-2024-25629",
      "title": "c-ares: out of bounds read in ares__read_line() (bsc#1220279).",
      "priority": "High",
      "severity": "LOW",
      "cvss": 7.5,
      "epss": 0.00352,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-69186",
      "url": "https://patchblox.com/security/cve/CVE-2026-69186",
      "title": "c-ares: Memory-amplification denial of service via unvalidated DNS header record counts",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.3,
      "epss": 0.00466,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-62408",
      "url": "https://patchblox.com/security/cve/CVE-2025-62408",
      "title": "c-ares has a Use After Free vulnerability when connection is cleaned up after error",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.9,
      "epss": 0.00458,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T01:43:54Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}