CVE WatchSep 21, 2026

CVE-2026-83549

SonicWall SMA1000 Appliances OS Command Injection Vulnerability

CVSS

7.8

High

EPSS

9.9%

p96

KEV

YES

Sep 2, 2026

Exploit Today

0-100

Published: Sep 1, 2026 · Last modified: Sep 21, 2026 · CWE-78

EPSS · 30d

8.5%EPSS · 30 days10.8%

2026-09-182026-10-16

KEV catalog record

Product

SonicWall / SMA1000 Appliances

Vulnerability

SonicWall SMA1000 Appliances OS Command Injection Vulnerability

Added to KEV

Sep 2, 2026

Remediate by

Sep 5, 2026

Known ransomware use

Summary description

SonicWall SMA1000 Appliances contains an OS command injection vulnerability that could enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.

Required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Notes

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-83549

Technical description

Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific conditions could potentially enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.

Official references

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