SonicWALL SonicOS NULL Pointer Dereference (CVE-2026-0401)

high Tenable OT Security Plugin ID 505223

Synopsis

The remote OT asset is affected by a vulnerability.

Description

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

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: High

ID: 505223

File Name: tenable_ot_sonicwall_CVE-2026-0401.nasl

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 3/10/2026

Updated: 3/10/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2026-0401

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/h:sonicwall:nssp_10700:-, cpe:/h:sonicwall:nsa_5700:-, cpe:/h:sonicwall:tz570p:-, cpe:/h:sonicwall:nsa_4800:-, cpe:/h:sonicwall:tz480:-, cpe:/h:sonicwall:nssp_11700:-, cpe:/h:sonicwall:nssp_15700:-, cpe:/h:sonicwall:nsa_6700:-, cpe:/h:sonicwall:tz370w:-, cpe:/h:sonicwall:tz470w:-, cpe:/h:sonicwall:nsa_3800:-, cpe:/h:sonicwall:tz670:-, cpe:/h:sonicwall:nsa_3700:-, cpe:/h:sonicwall:tz570:-, cpe:/h:sonicwall:tz680:-, cpe:/h:sonicwall:tz370:-, cpe:/h:sonicwall:tz280:-, cpe:/h:sonicwall:tz570w:-, cpe:/h:sonicwall:tz380:-, cpe:/h:sonicwall:tz80:-, cpe:/h:sonicwall:nsa_2800:-, cpe:/h:sonicwall:tz580:-, cpe:/h:sonicwall:nsa_4700:-, cpe:/h:sonicwall:tz270w:-, cpe:/h:sonicwall:nsa_2700:-, cpe:/h:sonicwall:tz270:-, cpe:/h:sonicwall:nssp_13700:-, cpe:/h:sonicwall:nsa_5800:-, cpe:/h:sonicwall:tz470:-

Required KB Items: Tenable.ot/SonicWALL

Exploit Ease: No known exploits are available

Patch Publication Date: 2/24/2026

Vulnerability Publication Date: 2/24/2026

Reference Information

CVE: CVE-2026-0401

CWE: 476

Detections

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