CVE-2026-16409

Invalid pointer in the Security: PSM component

High · published July 21, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
20.3
In the wild
Unconfirmed
What it is

Invalid pointer in the Security: PSM component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00288 · 20.3th percentile
Published
2026-07-21T12:38Z
EPSS history
Timeline
  • 21 JUL 12:38Z
    Invalid pointer in the Security: PSM component
    cvelistv5