Uninitialized memory in the Graphics: WebGPU component. (CVE-2026-100799)
CVE-2026-100799 is a vulnerability involving uninitialized memory in the Graphics: WebGPU component of Firefox. This issue was addressed and fixed in Firefox version 157. The vulnerability has a CVSS score of 4.3, indicating a medium severity level, and its impact is limited to availability (denial of service) without confidentiality or integrity effects.
AI Analysis
Technical Summary
This vulnerability concerns uninitialized memory usage in the Graphics: WebGPU component of Firefox. Uninitialized memory can lead to unpredictable behavior, including potential crashes or denial of service conditions. The issue was resolved by Mozilla in Firefox 157. The CVSS v3.1 vector indicates the attack vector is network-based, with low attack complexity, no privileges required, and user interaction required. The scope is unchanged, and the impact affects only availability, not confidentiality or integrity.
Potential Impact
The vulnerability can cause denial of service conditions in Firefox through uninitialized memory in the WebGPU graphics component. There is no impact on confidentiality or integrity. No known exploits in the wild have been reported.
Mitigation Recommendations
Mozilla has fixed this vulnerability in Firefox 157. Users and administrators should update to Firefox 157 or later to remediate this issue. No additional mitigation steps are required beyond applying the official update.
Uninitialized memory in the Graphics: WebGPU component. (CVE-2026-100799)
Description
CVE-2026-100799 is a vulnerability involving uninitialized memory in the Graphics: WebGPU component of Firefox. This issue was addressed and fixed in Firefox version 157. The vulnerability has a CVSS score of 4.3, indicating a medium severity level, and its impact is limited to availability (denial of service) without confidentiality or integrity effects.
CVSS v3.1
Score 4.3medium
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns uninitialized memory usage in the Graphics: WebGPU component of Firefox. Uninitialized memory can lead to unpredictable behavior, including potential crashes or denial of service conditions. The issue was resolved by Mozilla in Firefox 157. The CVSS v3.1 vector indicates the attack vector is network-based, with low attack complexity, no privileges required, and user interaction required. The scope is unchanged, and the impact affects only availability, not confidentiality or integrity.
Potential Impact
The vulnerability can cause denial of service conditions in Firefox through uninitialized memory in the WebGPU graphics component. There is no impact on confidentiality or integrity. No known exploits in the wild have been reported.
Mitigation Recommendations
Mozilla has fixed this vulnerability in Firefox 157. Users and administrators should update to Firefox 157 or later to remediate this issue. No additional mitigation steps are required beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-6chf-cfvh-wmv2
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-100799"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abc27c9680226ef6846f845
Added to database: 09/29/2026, 21:04:09 UTC
Last enriched: 09/29/2026, 21:20:38 UTC
Last updated: 09/30/2026, 03:38:51 UTC
Views: 8
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.