Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-117983 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CNA: CISA-ADPCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=2078904 [email protected]Issue TrackingPermission RequiredVendor
https://www.mozilla.org/security/advisories/mfsa2026-118/ [email protected]AdvisoryBundleVendor
https://www.mozilla.org/security/advisories/mfsa2026-120/ [email protected]AdvisoryBundleVendor
https://www.mozilla.org/security/advisories/mfsa2026-121/ [email protected]
https://www.mozilla.org/security/advisories/mfsa2026-122/ [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After FreeCISA-ADP

Affected Products

ProductVersions
Mozilla Firefox
All versions

CPE

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Remediation

  • Upgrade: 159moderate effort
Mozilla Firefox ESR
All versions

CPE

  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*

Remediation

  • Upgrade: 153.6moderate effort

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-117983
NVD Published Date:
Oct 27, 2026
NVD Last Modified:
Nov 5, 2026
Source:
[email protected]
CVE-2026-117983 Details - Not Deferred