{
  "fix": "openssl 3.5.5-1ubuntu3.6",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-openssl-3.5.5-1ubuntu3.6",
  "summary": "openssl 3.5.5-1ubuntu3.6, released September 28, 2026, fixes 11 CVEs in openssl. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "package",
  "title": "openssl 3.5.5-1ubuntu3.6 for Ubuntu 26.04.1 LTS (resolute)",
  "released": "2026-09-28T17:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-84782, high severity",
  "supported": true,
  "cveCount": 11,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0122,
  "maxCvss": 8.2,
  "appliesTo": [
    {
      "product": "openssl",
      "productUrl": "https://patchblox.com/security/product/linux/openssl",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.5.5-1ubuntu3.6",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-84782",
      "url": "https://patchblox.com/security/cve/CVE-2026-84782",
      "title": "DTLS Retransmits Handshake Messages From a Stale Buffer Offset",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.2,
      "epss": 0.00906,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-84784",
      "url": "https://patchblox.com/security/cve/CVE-2026-84784",
      "title": "QUIC: Unbounded RETIRE_CONNECTION_ID Backlog",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00607,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-72897",
      "url": "https://patchblox.com/security/cve/CVE-2026-72897",
      "title": "Out-of-Bounds Access After SSL_set_SSL_CTX() During a Handshake",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00388,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-75806",
      "url": "https://patchblox.com/security/cve/CVE-2026-75806",
      "title": "Unauthenticated and Undersized DTLS 1.2 AEAD Record Causes DoS",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.3,
      "epss": 0.0122,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-35191",
      "url": "https://patchblox.com/security/cve/CVE-2026-35191",
      "title": "QUIC Unvalidated Amplification Credit may be Over Accounted",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 3.7,
      "epss": 0.00723,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-75804",
      "url": "https://patchblox.com/security/cve/CVE-2026-75804",
      "title": "QUIC Connection-Level Flow Control is Not Enforced for Streams",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.3,
      "epss": 0.00529,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-54872",
      "url": "https://patchblox.com/security/cve/CVE-2026-54872",
      "title": "Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 3.7,
      "epss": 0.0049,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-54875",
      "url": "https://patchblox.com/security/cve/CVE-2026-54875",
      "title": "Non-Constant-Time SM2 Scalar Multiplication on ARM64 and RISC-V",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 3.7,
      "epss": 0.00479,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-77696",
      "url": "https://patchblox.com/security/cve/CVE-2026-77696",
      "title": "Timing Side-Channel in SM2 Signature Generation",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 3.7,
      "epss": 0.00438,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-75805",
      "url": "https://patchblox.com/security/cve/CVE-2026-75805",
      "title": "NULL Pointer Dereference in CMP Client Revocation Response Handling",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.3,
      "epss": 0.00358,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-35189",
      "url": "https://patchblox.com/security/cve/CVE-2026-35189",
      "title": "Excessive Memory Allocation in Relative CRLDP Processing",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.3,
      "epss": 0.00354,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-12T01:51:14Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}