Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00257.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Mozilla Firefox affected
Version Status Constraints
153.4 unaffected ≤ 153.*
157 unaffected ≤ *
Mozilla Thunderbird affected
Version Status Constraints
153.4 unaffected ≤ 153.*
157 unaffected ≤ *

No data.

No data.

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Vendors Products
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Firefox Subscribe

Project Subscriptions

Vendors Products
Mozilla Subscribe
Firefox Subscribe
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4814-1 firefox-esr security update
Debian DSA Debian DSA DSA-6533-1 firefox-esr security update
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=2060408 cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-100/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-101/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-103/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-97/ cve-icon cve-icon
History

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

Type Values Removed Values Added
Weaknesses CWE-665

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

Type Values Removed Values Added
Description Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, and Firefox 157. Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
References

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

Type Values Removed Values Added
Description Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157. Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, and Firefox 157.
References

Tue, 29 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-457
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

ssvc

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

Tue, 29 Sep 2026 17:15:00 +0000

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

Tue, 29 Sep 2026 16:45:00 +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 Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.
Title Uninitialized memory in the Graphics: WebGPU component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-09-30T17:20:58.060Z

Reserved: 2026-09-26T19:17:58.785Z

Link: CVE-2026-100806

cve-icon Vulnrichment

Updated: 2026-09-29T16:24:30.663Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-29T13:17:45.700

Modified: 2026-09-30T18:18:09.963

Link: CVE-2026-100806

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T04:00:14Z

Weaknesses