CVE-2026-5733: Vulnerability in Mozilla Firefox
CVE-2026-5733 is a high-impact vulnerability in Mozilla Firefox affecting versions prior to 149. 0. 2. It involves incorrect boundary conditions in the Graphics: WebGPU component, which is related to memory safety issues. Mozilla has fixed this vulnerability in Firefox 149. 0. 2 along with several other memory safety bugs that could potentially allow arbitrary code execution. There are no known exploits in the wild at this time. Users are advised to update to Firefox 149. 0.
AI Analysis
Technical Summary
This vulnerability, identified as CVE-2026-5733, concerns incorrect boundary conditions in the Graphics: WebGPU component of Mozilla Firefox. It affects Firefox versions earlier than 149.0.2. The issue is classified as a memory safety bug that could lead to memory corruption and potentially arbitrary code execution if exploited. Mozilla addressed this vulnerability in the Firefox 149.0.2 release, which includes fixes for multiple related memory safety issues. The vendor advisory confirms the impact as high and recommends updating to the fixed version.
Potential Impact
The vulnerability could lead to memory corruption in the WebGPU graphics component of Firefox, which may allow an attacker to execute arbitrary code. This poses a high security risk to affected users. However, there are no reports of active exploitation in the wild. The impact is mitigated by the availability of an official fix.
Mitigation Recommendations
Mozilla has released Firefox version 149.0.2 which includes a fix for CVE-2026-5733. Users should update to this version or later to remediate the vulnerability. No additional mitigation steps are required beyond applying the official update.
CVE-2026-5733: Vulnerability in Mozilla Firefox
Description
CVE-2026-5733 is a high-impact vulnerability in Mozilla Firefox affecting versions prior to 149. 0. 2. It involves incorrect boundary conditions in the Graphics: WebGPU component, which is related to memory safety issues. Mozilla has fixed this vulnerability in Firefox 149. 0. 2 along with several other memory safety bugs that could potentially allow arbitrary code execution. There are no known exploits in the wild at this time. Users are advised to update to Firefox 149. 0.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CVE-2026-5733, concerns incorrect boundary conditions in the Graphics: WebGPU component of Mozilla Firefox. It affects Firefox versions earlier than 149.0.2. The issue is classified as a memory safety bug that could lead to memory corruption and potentially arbitrary code execution if exploited. Mozilla addressed this vulnerability in the Firefox 149.0.2 release, which includes fixes for multiple related memory safety issues. The vendor advisory confirms the impact as high and recommends updating to the fixed version.
Potential Impact
The vulnerability could lead to memory corruption in the WebGPU graphics component of Firefox, which may allow an attacker to execute arbitrary code. This poses a high security risk to affected users. However, there are no reports of active exploitation in the wild. The impact is mitigated by the availability of an official fix.
Mitigation Recommendations
Mozilla has released Firefox version 149.0.2 which includes a fix for CVE-2026-5733. Users should update to this version or later to remediate the vulnerability. No additional mitigation steps are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-04-07T12:43:13.392Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-25/","vendor":"Mozilla"}]
Threat ID: 69d50016aaed68159a219cde
Added to database: 4/7/2026, 1:01:10 PM
Last enriched: 4/7/2026, 1:16:43 PM
Last updated: 4/7/2026, 2:19:11 PM
Views: 4
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