Vulnerability · Published Feb 24, 2026 · Assigned by sonicwall

CVE-2026-0401

Medium 4.9

In plain English

A medium-severity null pointer dereference in SonicOS from SonicWall. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 3.1)4.9Medium

Exploit odds (30 days)0.4%top 65.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker to crash a firewall.

Affected products (as reported)

Vendor	Product	Versions
SonicWall	SonicOS	7.0.1-5169 and older versions7.3.1-7013 and older versions8.1.0-8017 and older versions

Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001 vendor-advisory