Use-after-free in the JavaScript: GC component_CVE-2026-0885

6.5 / 10

MEDIUM

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

Description

Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7.

Basic Information

ID CVE-2026-0885

Source mozilla

Published Jan 13, 2026 at 13:30

Modified Jan 13, 2026 at 20:25

Affected Product

Vendor Mozilla

Product Firefox

Version unspecified

Affected Versions Mozilla Firefox unspecified
Mozilla Firefox ESR unspecified

CWE Classification

CWE-416

References

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    "lastseen": "",
    "description": "Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7.",
    "published": "2026-01-13T13:30:56.939Z",
    "modified": "2026-01-13T20:25:45.847Z",
    "type": "cve",
    "title": "Use-after-free in the JavaScript: GC component",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=2003607\nhttps://www.mozilla.org/security/advisories/mfsa2026-01/\nhttps://www.mozilla.org/security/advisories/mfsa2026-03/",
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    "sourceData": "Mozilla Firefox unspecified\nMozilla Firefox ESR unspecified",
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    "cvss": {
        "score": 6.5,
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        "version": "3.1"
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        "cvssV3": {
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    "href": "",
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    "product": "Firefox",
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