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VULNERABILITIES

CVE-2026-109774 Details

ANALYZED

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

Description

Invalid pointer, undefined behavior in the DOM: Notifications component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA: CISA-ADPCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=2067657 [email protected]ExploitIssue TrackingTechnical DescriptionVendor
https://www.mozilla.org/security/advisories/mfsa2026-106/ [email protected]AdvisoryBundleVendor
https://www.mozilla.org/security/advisories/mfsa2026-109/ [email protected]AdvisoryBundleVendor

Weakness Enumeration

CWE-IDCWE NameSource
CWE-824Access of Uninitialized PointerCISA-ADP

Affected Products

ProductVersions
Mozilla Firefox
>= 155, < 158

CPE

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

Remediation

  • Upgrade: 158moderate effort
Mozilla Thunderbird
>= 155, < 158

CPE

  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

Remediation

  • Upgrade: 158moderate effort

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-109774
NVD Published Date:
Oct 13, 2026
NVD Last Modified:
Oct 26, 2026
Source:
[email protected]
CVE-2026-109774 Details - Not Deferred