CVE-2026-0400

4.9 MEDIUM

Published: February 24, 2026 Modified: February 26, 2026

Description

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

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Patch Vendor Advisory Exploit Third Party Advisory

Source: PSIRT@sonicwall.com

Vendor Advisory

1 reference(s) from NVD

CVSS v3 Score

4.9 / 10.0

EPSS (Exploit Probability)

0.2%

40th percentile

Exploitation Status

Not in CISA KEV

CWE-134

sonicwall