CVE-2025-14332: Memory Safety Bugs in Firefox 145 Enable Arbitrary Exec
CVE-2025-14332 Published on December 9, 2025
Memory safety bugs fixed in Firefox 146 and Thunderbird 146
Memory safety bugs present in Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 146 and Thunderbird < 146.
Vulnerability Analysis
CVE-2025-14332 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 low. considered to have a small impact on confidentiality and integrity and availability.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2025-14332 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2025-14332
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Affected Versions
Mozilla Firefox:- Version unspecified and below 146 is affected.
- Version unspecified and below 146 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.