Undefined behavior in the WebRTC: Signaling component_CVE-2026-4718

8.1 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Description

Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

Basic Information

ID CVE-2026-4718

Source mozilla

Published Mar 24, 2026 at 12:30

Modified Mar 25, 2026 at 19:49

Affected Product

Vendor Mozilla

Product Firefox

Version unspecified

Affected Versions Mozilla Firefox unspecified
Mozilla Firefox ESR unspecified
Mozilla Thunderbird unspecified
Mozilla Thunderbird unspecified

CWE Classification

CWE-758

References

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    "lastseen": "",
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    "published": "2026-03-24T12:30:42.279Z",
    "modified": "2026-03-25T19:49:21.495Z",
    "type": "cve",
    "title": "Undefined behavior in the WebRTC: Signaling component",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=2014864\nhttps://www.mozilla.org/security/advisories/mfsa2026-20/\nhttps://www.mozilla.org/security/advisories/mfsa2026-22/\nhttps://www.mozilla.org/security/advisories/mfsa2026-23/\nhttps://www.mozilla.org/security/advisories/mfsa2026-24/",
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    "cvss": {
        "score": 8.1,
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        "version": "3.1"
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    "href": "",
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    "product": "Firefox",
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