CVE-2026-0400CWE-134

A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall

Medium · published February 24, 2026

CVSS v3.1
4.9
EPSS
0%
Percentile
41.7
In the wild
Unconfirmed
What it is

A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00497 · 41.7th percentile
Weakness
CWE-134 · Use of Externally-Controlled Format String
Published
2026-02-24T14:54Z
EPSS history
Timeline
  • 24 FEB 14:54Z
    A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall
    cvelistv5