Firefox <144.0.2: Use-after-Free in WebGPU IPC Allows Sandbox Escape
CVE-2025-12380 Published on October 28, 2025
Use-after-free in WebGPU internals triggered from a compromised child process
Starting with Firefox 142, it was possible for a compromised child process to trigger a use-after-free in the GPU or browser process using WebGPU-related IPC calls. This may have been usable to escape the child process sandbox. This vulnerability affects Firefox < 144.0.2.
Vulnerability Analysis
CVE-2025-12380 is exploitable with network access, and does not require authorization privileges or 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 critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2025-12380 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2025-12380
Want to know whenever a new CVE is published for Mozilla Firefox? stack.watch will email you.
Affected Versions
Mozilla Firefox:- Version unspecified and below 144.0.2 is affected.
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.