{
  "fix": "ALAS2023-2025-976",
  "url": "https://patchblox.com/security/fix/linux/alas2023-2025-976",
  "summary": "ALAS2023-2025-976, released May 21, 2025, fixes 6 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 3 packages",
  "released": "2025-05-21T19:36:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2025-4091, high severity",
  "supported": true,
  "cveCount": 6,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00507,
  "maxCvss": 9.1,
  "vendorAdvisory": "https://alas.aws.amazon.com/AL2023/ALAS-2025-976.html",
  "appliesTo": [
    {
      "product": "firefox",
      "productUrl": "https://patchblox.com/security/product/linux/firefox",
      "release": "amzn 2023",
      "fixedVersion": "128.10.0-1.amzn2023.0.2",
      "supported": true
    },
    {
      "product": "firefox-debuginfo",
      "productUrl": "https://patchblox.com/security/product/linux/firefox-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "128.10.0-1.amzn2023.0.2",
      "supported": true
    },
    {
      "product": "firefox-debugsource",
      "productUrl": "https://patchblox.com/security/product/linux/firefox-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "128.10.0-1.amzn2023.0.2",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2025-4091",
      "url": "https://patchblox.com/security/cve/CVE-2025-4091",
      "title": "Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.00507,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-4093",
      "url": "https://patchblox.com/security/cve/CVE-2025-4093",
      "title": "Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.00491,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-4083",
      "url": "https://patchblox.com/security/cve/CVE-2025-4083",
      "title": "Process isolation bypass using \u0022javascript:\u0022 URI links in cross-origin frames",
      "priority": "High",
      "severity": "Medium",
      "cvss": 9.1,
      "epss": 0.00459,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-4087",
      "url": "https://patchblox.com/security/cve/CVE-2025-4087",
      "title": "Unsafe attribute access during XPath parsing",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.8,
      "epss": 0.00323,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-52099",
      "url": "https://patchblox.com/security/cve/CVE-2025-52099",
      "title": "lemon: Rejected reason: DO NOT USE THIS CVE RECORD",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.5,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-29088",
      "url": "https://patchblox.com/security/cve/CVE-2025-29088",
      "title": "sqlite3-tools: In SQLite 3.49.0 before 3.49.1, certain argument values tosqlite3_db_config (in the C-language API) can cause a denia...",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 5.5,
      "epss": 0.00221,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}