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VULNERABILITIES

CVE-2026-117977 Details

ANALYZED

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

Description

Other issue in the Console 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:7.3 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA: CISA-ADPCVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=2077418 [email protected]Issue TrackingPermission RequiredVendor
https://www.mozilla.org/security/advisories/mfsa2026-118/ [email protected]AdvisoryBundleRemedyVendor
https://www.mozilla.org/security/advisories/mfsa2026-120/ [email protected]AdvisoryBundleRemedyVendor
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-117Improper Output Neutralization for LogsCISA-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-2026-117977
NVD Published Date:
Oct 27, 2026
NVD Last Modified:
Nov 5, 2026
Source:
[email protected]
CVE-2026-117977 Details - Not Deferred