FKIE_CVE-2025-14321

Vulnerability from fkie_nvd - Published: 2025-12-09 16:17 - Updated: 2025-12-11 21:15
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Use-after-free in the WebRTC: Signaling component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1992760Issue Tracking, Permissions Required
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-92/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-94/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-95/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-96/Vendor Advisory
Impacted products
Vendor Product Version
mozilla firefox *
mozilla firefox *
mozilla thunderbird *
mozilla thunderbird *
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use-after-free in the WebRTC: Signaling component. This vulnerability affects Firefox \u003c 146, Firefox ESR \u003c 140.6, Thunderbird \u003c 146, and Thunderbird \u003c 140.6."
    }
  ],
  "id": "CVE-2025-14321",
  "lastModified": "2025-12-11T21:15:46.907",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
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          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
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  "published": "2025-12-09T16:17:39.410",
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      "tags": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-416"
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}


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