CVE-2025-45311
High · 8.8CVSS
8.8
EPSS
0.4%
Published
Nov 26, 2025
CISA due date
—
The record
Insecure permissions in fail2ban-client v0.11.2 allows attackers with limited sudo privileges to perform arbitrary operations as root. NOTE: this is disputed by multiple parties because the action for a triggered rule can legitimately be an arbitrary operation as root. Thus, the software is behaving in accordance with its intended privilege model.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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