CVE-2026-0400

medium

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

Vendor / product: Sonicwall — sonicos

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

CVSS

4.9

4.9 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)

Timeline (UTC)

Published: 2026-02-24 15:21

Modified: 2026-11-09 14:48

NVD status: Analyzed

Last synced 2 days ago

Verified against the source API 2026-11-09 15:05 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

sonicwall / sonicos <7.3.2-7010, <8.2.0-8009

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

NVD CVE API 2.0 — fetched 2026-11-09 15:05 UTC · record ↗