CVE-2026-100764
published 2026-09-29CVE-2026-100764: Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
PriorityP347high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.25%
14.8th percentile
Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 157 | Firefox 157 |
| mozilla | firefox | < 157.0.0 | 157.0.0 |
| mozilla | thunderbird | < Thunderbird 157 | Thunderbird 157 |
| mozilla | thunderbird | < 157.0 | 157.0 |
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Mozilla
Mozilla Foundation Security Advisory 2026-97: CVE-2026-100764
vendor_mozilla·CVSS 8.8
CVE-2026-100764 [HIGH] Mozilla Foundation Security Advisory 2026-97: CVE-2026-100764
Mozilla Foundation Security Advisory 2026-97
CVE: CVE-2026-100764
Product: Firefox
Impact: low
Fixed in: Firefox 157
Mozilla
Mozilla Foundation Security Advisory 2026-101: CVE-2026-100764
vendor_mozilla·CVSS 8.8
CVE-2026-100764 [HIGH] Mozilla Foundation Security Advisory 2026-101: CVE-2026-100764
Mozilla Foundation Security Advisory 2026-101
CVE: CVE-2026-100764
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 157
VulDB
Mozilla Firefox up to 156 WebGPU privileges management (WID-SEC-2026-3654)
vuldb·2026-10-03·CVSS 8.8
CVE-2026-100764 [HIGH] Mozilla Firefox up to 156 WebGPU privileges management (WID-SEC-2026-3654)
A vulnerability described as critical has been identified in Mozilla Firefox up to 156. This impacts an unknown function of the component WebGPU. Such manipulation leads to improper privilege management.
This vulnerability is uniquely identified as CVE-2026-100764. The attack can be launched remotely. No exploit exists.
Upgrading the affected component is recommended.
GHSA
Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component.
ghsa_unreviewed·2026-09-29
CVE-2026-100764 [HIGH] CWE-119 Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component.
Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 157.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-29
Published