{
  "fix": "libc6-dev-amd64 2.43-2ubuntu2.3",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libc6-dev-amd64-2.43-2ubuntu2.3",
  "summary": "libc6-dev-amd64 2.43-2ubuntu2.3, released April 28, 2026, fixes 5 CVEs in libc6-dev-amd64. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "package",
  "title": "libc6-dev-amd64 2.43-2ubuntu2.3 for Ubuntu 26.04.1 LTS (resolute)",
  "released": "2026-04-28T12:37:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-5450, high severity",
  "supported": true,
  "cveCount": 5,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00502,
  "maxCvss": 9.8,
  "appliesTo": [
    {
      "product": "libc6-dev-amd64",
      "productUrl": "https://patchblox.com/security/product/linux/libc6-dev-amd64",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.43-2ubuntu2.3",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-5450",
      "url": "https://patchblox.com/security/cve/CVE-2026-5450",
      "title": "scanf %mc off-by-one heap buffer overflow",
      "priority": "High",
      "severity": "Low",
      "cvss": 9.8,
      "epss": 0.00502,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-4046",
      "url": "https://patchblox.com/security/cve/CVE-2026-4046",
      "title": "iconv crash due to assertion failure with untrusted input",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00389,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-5928",
      "url": "https://patchblox.com/security/cve/CVE-2026-5928",
      "title": "Static buffer overflow in deprecated nis_local_principal",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00369,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-5435",
      "url": "https://patchblox.com/security/cve/CVE-2026-5435",
      "title": "Potential buffer overflow in ns_sprintrrf TSIG handling path",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.6,
      "epss": 0.00237,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-6238",
      "url": "https://patchblox.com/security/cve/CVE-2026-6238",
      "title": "glibc-langpack-af: glibc: glibc: Application crash or uninitialized memory read via crafted DNS response",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 6.5,
      "epss": 0.00358,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T13:47:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}