Detections
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SonicWALL SonicOS Allocation of Resources Without Limits or Throttling (CVE-2022-22278)

high Tenable OT Security Plugin ID 505201

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability in SonicOS CFS (Content filtering service) returns a large 403 forbidden HTTP response message to the source address when users try to access prohibited resource this allows an attacker to cause HTTP Denial of Service (DoS) attack

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.

See Also

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0004

Plugin Details

Severity: High

ID: 505201

File Name: tenable_ot_sonicwall_CVE-2022-22278.nasl

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 2/24/2026

Updated: 2/24/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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-2022-22278

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:/o:sonicwall:tz500w_firmware, cpe:/o:sonicwall:tz370_firmware, cpe:/o:sonicwall:tz300w_firmware, cpe:/o:sonicwall:tz600p_firmware, cpe:/o:sonicwall:tz500_firmware, cpe:/o:sonicwall:nsa_2650_firmware, cpe:/o:sonicwall:tz470w_firmware, cpe:/o:sonicwall:nsv_400_firmware, cpe:/o:sonicwall:nsv_870_firmware, cpe:/o:sonicwall:nsa_3700_firmware, cpe:/o:sonicwall:nsa_4700_firmware, cpe:/o:sonicwall:nsa_2700_firmware, cpe:/o:sonicwall:nsa_9450_firmware, cpe:/o:sonicwall:nssp_13700_firmware, cpe:/o:sonicwall:nsv_100_firmware, cpe:/o:sonicwall:nsv_10_firmware, cpe:/o:sonicwall:nsv_470_firmware, cpe:/o:sonicwall:nsa_6650_firmware, cpe:/o:sonicwall:tz570w_firmware, cpe:/o:sonicwall:tz350w_firmware, cpe:/o:sonicwall:nsa_3650_firmware, cpe:/o:sonicwall:tz400w_firmware, cpe:/o:sonicwall:tz570p_firmware, cpe:/o:sonicwall:nsa_4650_firmware, cpe:/o:sonicwall:nsa_6700_firmware, cpe:/o:sonicwall:nsv_50_firmware, cpe:/o:sonicwall:nsa_9250_firmware, cpe:/o:sonicwall:tz400_firmware, cpe:/o:sonicwall:tz670_firmware, cpe:/o:sonicwall:nssp_10700_firmware, cpe:/o:sonicwall:tz570_firmware, cpe:/o:sonicwall:nsv_1600_firmware, cpe:/o:sonicwall:tz470_firmware, cpe:/o:sonicwall:tz370w_firmware, cpe:/o:sonicwall:nsv_25_firmware, cpe:/o:sonicwall:nssp_12800_firmware, cpe:/o:sonicwall:nsv_300_firmware, cpe:/o:sonicwall:nsv_200_firmware, cpe:/o:sonicwall:tz350_firmware, cpe:/o:sonicwall:nsv_270_firmware, cpe:/o:sonicwall:nssp_15700_firmware, cpe:/o:sonicwall:tz600_firmware, cpe:/o:sonicwall:nssp_11700_firmware, cpe:/o:sonicwall:nssp_12400_firmware, cpe:/o:sonicwall:nsa_9650_firmware, cpe:/o:sonicwall:tz300p_firmware, cpe:/o:sonicwall:nsa_5650_firmware, cpe:/o:sonicwall:nsa_5700_firmware, cpe:/o:sonicwall:nsv_800_firmware

Required KB Items: Tenable.ot/SonicWALL

Exploit Ease: No known exploits are available

Patch Publication Date: 4/27/2022

Vulnerability Publication Date: 4/27/2022

Reference Information

CVE: CVE-2022-22278

CWE: 770