Uninitialized memory in the Audio/Video: Web Codecs component_CVE-2026-6751

7.3 / 10

HIGH

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

Description

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.

Basic Information

ID CVE-2026-6751

Source mozilla

Published Apr 21, 2026 at 12:40

Modified Apr 21, 2026 at 18:58

Affected Product

Vendor Mozilla

Product Firefox

Version 140.10

CWE Classification

CWE-457

References

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    "lastseen": "",
    "description": "Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.",
    "published": "2026-04-21T12:40:48.315Z",
    "modified": "2026-04-21T18:58:57.301Z",
    "type": "cve",
    "title": "Uninitialized memory in the Audio/Video: Web Codecs component",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=2025883\nhttps://www.mozilla.org/security/advisories/mfsa2026-30/\nhttps://www.mozilla.org/security/advisories/mfsa2026-32/",
    "id": "CVE-2026-6751",
    "bulletinFamily": "",
    "cwe": [
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    "cvss": {
        "score": 7.3,
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        "version": "3.1"
    },
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    "href": "",
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    "product": "Firefox",
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}