{
  "fix": "firefox 1:1snap1-0ubuntu1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-firefox-1-1snap1-0ubuntu1",
  "summary": "firefox 1:1snap1-0ubuntu1, released April 6, 2022, fixes 38 CVEs in firefox. 2 of them are being exploited (CVE-2022-26485); 2 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "linux",
  "type": "package",
  "title": "firefox 1:1snap1-0ubuntu1 for Ubuntu 22.04.1 LTS (jammy)",
  "released": "2022-04-06T17:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2022-26485, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 38,
  "exploitedCveCount": 2,
  "kevCveCount": 2,
  "ransomwareCveCount": 0,
  "maxEpss": 0.35271,
  "maxCvss": 9.8,
  "appliesTo": [
    {
      "product": "firefox",
      "productUrl": "https://patchblox.com/security/product/linux/firefox",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:1snap1-0ubuntu1",
      "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-2022-26383",
      "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": 0.00725,
      "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-2022-24713",
      "url": "https://patchblox.com/security/cve/CVE-2022-24713",
      "title": "kanidm: Security update for kanidm",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.1446,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-22822",
      "url": "https://patchblox.com/security/cve/CVE-2022-22822",
      "title": "xul-ext-lightning: addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.0548,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-23852",
      "url": "https://patchblox.com/security/cve/CVE-2022-23852",
      "title": "expat: Expat (aka libexpat) before 2.4.4 has a signed integer overflow inXML_GetBuffer, for configurations with a nonzero XM...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.05083,
      "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-2022-25314",
      "url": "https://patchblox.com/security/cve/CVE-2022-25314",
      "title": "expat: In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.5,
      "epss": 0.04818,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-23990",
      "url": "https://patchblox.com/security/cve/CVE-2022-23990",
      "title": "expat: Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.04688,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-45960",
      "url": "https://patchblox.com/security/cve/CVE-2021-45960",
      "title": "expat: In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) placesin the storeAtts function in xmlparse.c can...",
      "priority": "High",
      "severity": "Low",
      "cvss": 9.8,
      "epss": 0.04672,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-46143",
      "url": "https://patchblox.com/security/cve/CVE-2021-46143",
      "title": "expat: In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integeroverflow exists for m_groupSize.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.04465,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-22823",
      "url": "https://patchblox.com/security/cve/CVE-2022-22823",
      "title": "thunderbird-mozsymbols: build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.03866,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-22824",
      "url": "https://patchblox.com/security/cve/CVE-2022-22824",
      "title": "expat: defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.03866,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-25313",
      "url": "https://patchblox.com/security/cve/CVE-2022-25313",
      "title": "expat: In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting dep...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.5,
      "epss": 0.03295,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-22826",
      "url": "https://patchblox.com/security/cve/CVE-2022-22826",
      "title": "libxmltok1: nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.03182,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-22827",
      "url": "https://patchblox.com/security/cve/CVE-2022-22827",
      "title": "thunderbird-gnome-support: storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.03182,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-22825",
      "url": "https://patchblox.com/security/cve/CVE-2022-22825",
      "title": "libxmltok1: lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.8,
      "epss": 0.02994,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28281",
      "url": "https://patchblox.com/security/cve/CVE-2022-28281",
      "title": "Mozilla Thunderbird and 4 others: Out-of-bounds Write",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.02781,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28282",
      "url": "https://patchblox.com/security/cve/CVE-2022-28282",
      "title": "Mozilla Thunderbird and 4 others: Use After Free",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.0218,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-23639",
      "url": "https://patchblox.com/security/cve/CVE-2022-23639",
      "title": "firefox: crossbeam-utils provides atomics, synchronization primitives, scopedthreads, and other utilities for concurrent progr...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.1,
      "epss": 0.01229,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-1097",
      "url": "https://patchblox.com/security/cve/CVE-2022-1097",
      "title": "Mozilla Thunderbird and 4 others: Use After Free",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00952,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28285",
      "url": "https://patchblox.com/security/cve/CVE-2022-28285",
      "title": "Mozilla Thunderbird and 4 others: Out-of-bounds Read",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00789,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-1196",
      "url": "https://patchblox.com/security/cve/CVE-2022-1196",
      "title": "Mozilla Thunderbird and 1 other: Use After Free",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00752,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28289",
      "url": "https://patchblox.com/security/cve/CVE-2022-28289",
      "title": "Mozilla Thunderbird and 4 others: Out-of-bounds Write",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00737,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28284",
      "url": "https://patchblox.com/security/cve/CVE-2022-28284",
      "title": "Mozilla Firefox ESR and 2 others: Improper Encoding or Escaping of Output",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.00585,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28286",
      "url": "https://patchblox.com/security/cve/CVE-2022-28286",
      "title": "Mozilla Thunderbird and 4 others: Improper Restriction of Rendered UI Layers or Frames",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00584,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-0843",
      "url": "https://patchblox.com/security/cve/CVE-2022-0843",
      "title": "Mozilla Firefox ESR and 2 others: Out-of-bounds Write",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.00566,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28288",
      "url": "https://patchblox.com/security/cve/CVE-2022-28288",
      "title": "Mozilla Firefox ESR and 2 others: Out-of-bounds Write",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.00556,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-24791",
      "url": "https://patchblox.com/security/cve/CVE-2022-24791",
      "title": "firefox: Wasmtime is a standalone JIT-style runtime for WebAssembly, using Cranelift",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.01179,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28283",
      "url": "https://patchblox.com/security/cve/CVE-2022-28283",
      "title": "Mozilla Firefox ESR and 2 others: Files or Directories Accessible to External Parties",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 6.5,
      "epss": 0.006,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-26385",
      "url": "https://patchblox.com/security/cve/CVE-2022-26385",
      "title": "Mozilla Firefox ESR and 2 others: Use After Free",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 6.5,
      "epss": 0.00576,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28287",
      "url": "https://patchblox.com/security/cve/CVE-2022-28287",
      "title": "Mozilla Firefox ESR and 2 others: Improper Control of a Resource Through its Lifetime",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 6.5,
      "epss": 0.0057,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-26382",
      "url": "https://patchblox.com/security/cve/CVE-2022-26382",
      "title": "Mozilla Firefox ESR and 2 others: Observable Discrepancy",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 4.3,
      "epss": 0.00513,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-12T19:57:06Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}