CVE-2026-100802
published 2026-09-29CVE-2026-100802: Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
PriorityP418medium4.3CVSS 3.1
AVNACLPRNUIRSUCNINAL
EPSS
0.24%
14.4th percentile
Uninitialized memory 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 |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
vendor_redhat4.3MEDIUM
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GHSA
Uninitialized memory in the Graphics: WebGPU component.
ghsa_unreviewed·2026-09-29
CVE-2026-100802 [MEDIUM] CWE-457 Uninitialized memory in the Graphics: WebGPU component.
Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 157.
Red Hat
firefox: Uninitialized memory in the Graphics: WebGPU component
vendor_redhat·2026-09-29·CVSS 4.3
CVE-2026-100802 [MEDIUM] CWE-457 firefox: Uninitialized memory in the Graphics: WebGPU component
firefox: Uninitialized memory in the Graphics: WebGPU component
Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
Uninitialized memory in the Graphics: WebGPU component
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Mitigation: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Package: firefox (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10
Mozilla
Mozilla Foundation Security Advisory 2026-101: CVE-2026-100802
vendor_mozilla·CVSS 4.3
CVE-2026-100802 [MEDIUM] Mozilla Foundation Security Advisory 2026-101: CVE-2026-100802
Mozilla Foundation Security Advisory 2026-101
CVE: CVE-2026-100802
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 157
Mozilla
Mozilla Foundation Security Advisory 2026-97: CVE-2026-100802
vendor_mozilla·CVSS 4.3
CVE-2026-100802 [MEDIUM] Mozilla Foundation Security Advisory 2026-97: CVE-2026-100802
Mozilla Foundation Security Advisory 2026-97
CVE: CVE-2026-100802
Product: Firefox
Impact: low
Fixed in: Firefox 157
No detection rules found.
No public exploits indexed.
2026-09-29
Published