Description
Uninitialized memory in the Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Published: 2026-09-29
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No solution or workaround provided in the CVE record.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4810-1 thunderbird security update
Debian DLA Debian DLA DLA-4814-1 firefox-esr security update
Debian DSA Debian DSA DSA-6533-1 firefox-esr security update
Debian DSA Debian DSA DSA-6536-1 thunderbird security update
History

Thu, 01 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200
CWE-255

Thu, 01 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-457
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 01 Oct 2026 07:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200
CWE-255

Thu, 01 Oct 2026 05:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-457

Wed, 30 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Description Uninitialized memory in the Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. Uninitialized memory in the Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
References

Wed, 30 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Uninitialized memory in the Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. Uninitialized memory in the Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
References

Wed, 30 Sep 2026 09:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-457

Wed, 30 Sep 2026 04:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-665

Tue, 29 Sep 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Tue, 29 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-665

Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Description Uninitialized memory in the Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Title Uninitialized memory in the Storage: Quota Manager component
References

Subscriptions

Mozilla Firefox
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-10-01T14:29:44.508Z

Reserved: 2026-09-26T19:15:16.495Z

Link: CVE-2026-100759

cve-icon Vulnrichment

Updated: 2026-10-01T14:27:55.379Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-09-29T13:17:40.213

Modified: 2026-10-01T15:17:17.953

Link: CVE-2026-100759

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T18:30:11Z

Weaknesses
  • CWE-457

    Use of Uninitialized Variable