{
  "fix": "RLSA-2022:0845",
  "url": "https://patchblox.com/security/fix/linux/rlsa-2022-0845",
  "summary": "RLSA-2022:0845, released March 14, 2022, fixes 11 CVEs in thunderbird (version 0:91.7.0-2.el8_5). 2 of them are being exploited (CVE-2022-26485); 2 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "linux",
  "type": "advisory",
  "title": "thunderbird security update",
  "released": "2022-03-14T09:49:10Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2022-26485, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 11,
  "exploitedCveCount": 2,
  "kevCveCount": 2,
  "ransomwareCveCount": 0,
  "maxEpss": 0.35271,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://errata.rockylinux.org/RLSA-2022:0845",
  "appliesTo": [
    {
      "product": "thunderbird",
      "productUrl": "https://patchblox.com/security/product/linux/thunderbird",
      "release": "rocky 8",
      "fixedVersion": "0:91.7.0-2.el8_5",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2022-26485",
      "url": "https://patchblox.com/security/cve/CVE-2022-26485",
      "title": "Mozilla Firefox Use-After-Free Vulnerability",
      "priority": "Patch now",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.14261,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-26486",
      "url": "https://patchblox.com/security/cve/CVE-2022-26486",
      "title": "Mozilla Firefox Use-After-Free Vulnerability",
      "priority": "Patch now",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.02362,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-26384",
      "url": "https://patchblox.com/security/cve/CVE-2022-26384",
      "title": "Mozilla Thunderbird and 4 others: Protection Mechanism Failure",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.00972,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-26381",
      "url": "https://patchblox.com/security/cve/CVE-2022-26381",
      "title": "Mozilla Thunderbird and 4 others: Use After Free",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.00874,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-26386",
      "url": "https://patchblox.com/security/cve/CVE-2022-26386",
      "title": "firefox: Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.\n\nThis...",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.00706,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-26383",
      "url": "https://patchblox.com/security/cve/CVE-2022-26383",
      "title": "Mozilla Thunderbird and 4 others: User Interface (UI) Misrepresentation of Critical Information",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.00698,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-26387",
      "url": "https://patchblox.com/security/cve/CVE-2022-26387",
      "title": "Mozilla Thunderbird and 4 others: Time-of-check Time-of-use (TOCTOU) Race Condition",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.00664,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-25236",
      "url": "https://patchblox.com/security/cve/CVE-2022-25236",
      "title": "libxmltok1: xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namesp...",
      "priority": "High",
      "severity": "High",
      "cvss": 9.8,
      "epss": 0.35271,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-25235",
      "url": "https://patchblox.com/security/cve/CVE-2022-25235",
      "title": "libxmltok1: xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a...",
      "priority": "High",
      "severity": "High",
      "cvss": 9.8,
      "epss": 0.04955,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-25315",
      "url": "https://patchblox.com/security/cve/CVE-2022-25315",
      "title": "expat: In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.04821,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-0566",
      "url": "https://patchblox.com/security/cve/CVE-2022-0566",
      "title": "Mozilla Thunderbird and 1 other: Out-of-bounds Write",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.8,
      "epss": 0.00735,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}