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CVE-2025-14333 Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146

🗓️ 09 Dec 2025 13:38:09Reported by mozillaType 
cvelist
 cvelist
🔗 www.cve.org👁 25 Views

Memory safety bugs fixed in Firefox and Thunderbird 146 and 140.6; older versions were vulnerable to code execution.

Related
Affected
Refs
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.6",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "146",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.6",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "146",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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