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[ CVE-2026-83548 · Published 1 Sep 2026 ]

SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability

Exploited · CISA KEV CVSS 10.0 EPSS 8%1 agency advisoryFix available

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2026-09-02
  • Critical severity: CVSS 10.0
  • Urgent advisory from CERT-FR

[ Description ]Official description

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.

CISA: SonicWall SMA1000 Appliances contains a server-side request forgery vulnerability that could allow a remote unauthenticated attacker to gain unauthorized access to sensitive functionality and perform unauthorized operations.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 5 Sep 2026): 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.

[ Advisories ]Government CERT advisories

  • CERT-FRCERTFR-2026-ALE-009

    Multiple vulnerabilities in SonicWall Secure Mobile Access Translated from French

    On 1 September 2026, SonicWall published a security advisory about two vulnerabilities affecting Secure Mobile Access (SMA) 1000. The critical vulnerability CVE-2026-83548 allows server-side request forgery (SSRF) by an…

    AlertCVE-2026-83549CVE-2026-83548

[ References ]References