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VULNERABILITIES

CVE-2026-117937 Details

ANALYZED

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

Description

Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:6.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CNA: CISA-ADPCVSS-B:7.3 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=2082005 [email protected]Issue TrackingPermission RequiredVendor
https://www.mozilla.org/security/advisories/mfsa2026-118/ [email protected]AdvisoryBundleRemedyVendor
https://www.mozilla.org/security/advisories/mfsa2026-119/ [email protected]AdvisoryBundleVendor
https://www.mozilla.org/security/advisories/mfsa2026-120/ [email protected]AdvisoryBundleVendor
https://www.mozilla.org/security/advisories/mfsa2026-121/ [email protected]

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-824Access of Uninitialized PointerCISA-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: 115.44moderate effort
  • Upgrade: 153.6moderate effort

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-117937
NVD Published Date:
Oct 27, 2026
NVD Last Modified:
Nov 4, 2026
Source:
[email protected]
CVE-2026-117937 Details - Not Deferred