CVE-2023-4052

The Firefox updater created a directory writable by non-privileged users

published August 1, 2023

CVSS
—
EPSS
1%
Percentile
53.0
In the wild
Unconfirmed
What it is

The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user.

*This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00711 · 53.0th percentile
Published
2023-08-01T14:59Z
EPSS history
Timeline
  • 01 AUG 14:59Z
    The Firefox updater created a directory writable by non-privileged users
    cvelistv5