7.8
HIGH CVSS 3.1
CVE-2026-66149
SonicWall Email Security OS Command Injection Vulnerability
Description

Improper Control of Generation of Code ('Code Injection') Vulnerability in the SonicWall Email Security appliance allows an authenticated attacker with access to the SonicWall Email Security restricted CLI can inject arbitrary OS commands that execute as root via netmask.

INFO

Published Date :

Aug. 11, 2026, 9:17 p.m.

Last Modified :

Aug. 11, 2026, 10:18 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-66149 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Sonicwall email_security
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Restrict CLI access and update the SonicWall Email Security appliance to patch command injection.
  • Apply the latest SonicWall security updates.
  • Restrict access to the restricted CLI.
  • Monitor all CLI activity for suspicious commands.
  • Implement command validation and sanitization.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-66149.

URL Resource
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0012
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-66149 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-66149 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-66149 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-66149 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 11, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added SSVC {'id': 'CVE-2026-66149', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-11T21:09:18.003142Z'}
  • New CVE Received by [email protected]

    Aug. 11, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'SonicWall', 'product': 'Email Security', 'versions': [{'status': 'affected', 'version': '10.0.35.8405 and earlier versions'}], 'platforms': ['Linux'], 'defaultStatus': 'unknown'}]
    Added Description Improper Control of Generation of Code ('Code Injection') Vulnerability in the SonicWall Email Security appliance allows an authenticated attacker with access to the SonicWall Email Security restricted CLI can inject arbitrary OS commands that execute as root via netmask.
    Added CWE CWE-94
    Added Reference https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0012
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.