CVE-2026-100768

Analyzed Analyzed - Analysis Complete

Use-after-free in Firefox Graphics WebGPU

Publication date: 2026-09-29

Last updated on: 2026-10-06

Assigner: Mozilla Corporation

Description

Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-29

Last Modified

2026-10-06

Generated

2026-10-19

AI Q&A

2026-09-29

EPSS Evaluated

2026-10-18

NVD

CVE-2026-100768

EUVD

EUVD-2026-88920

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 157.0.0 (exc)
mozilla	thunderbird	to 157.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This is a use-after-free vulnerability in the Graphics: WebGPU component of Firefox. Use-after-free means the software tries to use memory after it has been freed, which can lead to crashes or arbitrary code execution.

Detection Guidance

This vulnerability is specific to Firefox's Graphics: WebGPU component and was fixed in Firefox 157. Detection would require checking the installed Firefox version and inspecting for use-after-free conditions in WebGPU operations. No direct commands are provided in the context.

Impact Analysis

An attacker could exploit this to crash your browser or run malicious code on your system. This could allow them to steal data, install malware, or take control of your device.

Compliance Impact

The provided CVE data does not include specific details about compliance impacts on standards like GDPR or HIPAA. The vulnerability involves a use-after-free in Firefox's WebGPU component, which could lead to arbitrary code execution or data corruption. Such issues may pose risks to data integrity and confidentiality, potentially affecting compliance if exploited.

Mitigation Strategies

Update Firefox to version 157 or later to address the use-after-free vulnerability in the Graphics: WebGPU component.

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