CVE-2026-83548: SonicWall SMA1000 Appliances

What is CVE-2026-83548?

A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote unauthenticated attacker could potentially exploit this vulnerability to gain unauthorized access to sensitive functionality and perform unauthorized operations.

CVSS10 NVD 3.1

SeverityCRITICAL

Exploitation In the wild In CISA KEV

EPSS8% · P95

Triage statusActive Exploit

ActionPatch immediately

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

CWECWE-441

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 Server-Side Request Forgery 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 SonicWall security updates for SMA 1000 series VPN appliances as released by vendor
If patching cannot be completed immediately, isolate affected SMA 1000 appliances from untrusted networks
Monitor appliance logs for unusual SSRF or authentication bypass attempts
Enforce network access restrictions to administrative interfaces
Review and revoke any suspicious user sessions or API tokens created on affected appliances

References

Referenced in our briefings & reports

Vulnerability Priority Report – Week 4 of September 2026 (September 28 – October 4)
Vulnerability Priority Report – Week 3 of September 2026 (September 21 – 27)
Vulnerability Priority Report – Week 2 of September 2026 (September 14 – 20)
Vulnerability Priority Report – Week 1 of September 2026 (September 7 – 13)
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.