{
  "fix": "RHSA-2021:1193",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2021-1193",
  "summary": "RHSA-2021:1193, released April 14, 2021, fixes 5 CVEs in thunderbird (version 0:78.9.1-1.el8_3). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "thunderbird security update",
  "released": "2021-04-14T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2021-29950, high severity",
  "supported": true,
  "cveCount": 5,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01035,
  "maxCvss": 7.8,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2021:1193",
  "appliesTo": [
    {
      "product": "thunderbird",
      "productUrl": "https://patchblox.com/security/product/linux/thunderbird",
      "release": "RHEL 8",
      "fixedVersion": "0:78.9.1-1.el8_3",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-29950",
      "url": "https://patchblox.com/security/cve/CVE-2021-29950",
      "title": "Thunderbird: Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import\u2026",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.5,
      "epss": 0.00853,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-29949",
      "url": "https://patchblox.com/security/cve/CVE-2021-29949",
      "title": "Thunderbird: When loading the shared library that provides the OTR protocol implementation, Thunderbird will initially\u2026",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.00316,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23991",
      "url": "https://patchblox.com/security/cve/CVE-2021-23991",
      "title": "Thunderbird: If a Thunderbird user has previously imported Alice\u0027s OpenPGP key, and Alice has extended the validity\u2026",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 6.8,
      "epss": 0.01035,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23992",
      "url": "https://patchblox.com/security/cve/CVE-2021-23992",
      "title": "Thunderbird: Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature.",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 4.3,
      "epss": 0.00478,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23993",
      "url": "https://patchblox.com/security/cve/CVE-2021-23993",
      "title": "Thunderbird: An attacker may perform a DoS attack to prevent a user from sending encrypted email to a correspondent.",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 6.5,
      "epss": 0.00423,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}