Firefox 153: Invalid Pointer in PSM Component
CVE-2026-16409 Published on July 21, 2026
Invalid pointer in the Security: PSM component
Invalid pointer in the Security: PSM component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
Vulnerability Analysis
CVE-2026-16409 can be exploited 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 have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
Access of Uninitialized Pointer
The program accesses or uses a pointer that has not been initialized.
Products Associated with CVE-2026-16409
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Affected Versions
Mozilla Firefox:- Version 153, <= * is unaffected.
- Version 153, <= * 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.