CVE 9.8 CRITICAL

Integer overflow in the Networking: JAR component_CVE-2026-8956

May 19, 2026 invoker category_cve

9.8 / 10

CRITICAL

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

Description

Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.

AI Analysis

Integer overflow vulnerability in the Networking: JAR component of Firefox

Basic Information

ID CVE-2026-8956

Source mozilla

Published May 19, 2026 at 12:29

Modified May 19, 2026 at 16:39

Affected Product

Vendor Mozilla

Product Firefox

Version 140.11

CWE Classification

CWE-190

AI Assessment

AI Score 9.8 / 10

AI Severity Critical

Vendor Mozilla

Product Firefox

Version 140.11, 151

References

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    "lastseen": "",
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    "published": "2026-05-19T12:29:51.114Z",
    "modified": "2026-05-19T16:39:48.181Z",
    "type": "cve",
    "title": "Integer overflow in the Networking: JAR component",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=2032427\nhttps://www.mozilla.org/security/advisories/mfsa2026-46/\nhttps://www.mozilla.org/security/advisories/mfsa2026-48/",
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