CVE-2026-83549: SonicWall SMA1000 Appliances

What is CVE-2026-83549?

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.

CVSS7.8 NVD 3.1

SeverityHIGH

Exploitation In the wild In CISA KEV

EPSS2% · P75

Triage statusActive Exploit

ActionPatch immediately

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWECWE-78

NVD published2026-09-01

NVD last modified2026-09-03

Timeline

2026-09-01Published to the U.S. National Vulnerability Database (NVD)
2026-09-02Added to the CISA Known Exploited Vulnerabilities (KEV) catalog
2026-09-03NVD record last updated
2026-09-05CISA federal remediation deadline (BOD 22-01)

CISA Known Exploited Vulnerability

SonicWall SMA1000 Appliances OS Command Injection Vulnerability

Added to KEV2026-09-02

Federal patch deadline2026-09-05

Known ransomware useUnknown

Affected product

SonicWall SMA1000 Appliances

NVD also lists CPE entries for: Sonicwall Sma8200v, Sonicwall Sma6210 Firmware, Sonicwall Sma6210, Sonicwall Sma7210 Firmware, Sonicwall Sma7210

Remediation Steps

Apply the vendor security update for SonicWall SMA1000 Appliances as a priority.
Restrict network exposure of the affected service to trusted sources until patched.
Review logs and detections for indicators of exploitation.
Confirm fixed versions against the official vendor advisory before deploying.

References

Referenced in our briefings & reports

Vulnerability Priority Report – Week 5 of August 2026 (August 31 – September 6)

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🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.