Firefox <149.0.2 WebGPU Boundary Conditions CVE-2026-5733
CVE-2026-5733 Published on April 7, 2026
Incorrect boundary conditions in the Graphics: WebGPU component
Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2.
Vulnerability Analysis
CVE-2026-5733 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2026-5733 has been classified to as a Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2026-5733
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Affected Versions
Mozilla Firefox:- Version 149.0.2, <= * is unaffected.
- Version 149.0.2, <= * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.