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CVE-2026-83548

SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability

Published Sep 1, 2026Sources checked Nov 10, 2026
10.0CRITICALCVSS out of 10
What this means

Actively exploited

CISA lists CVE-2026-83548 in its Known Exploited Vulnerabilities catalog, which means exploitation has been observed. The entry applies to SonicWall SMA1000 Appliances.

  • 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.

Public exploit: Cataloged public exploit.

What to do next

Remediation and response

SonicWall PSIRT Advisories guidance

Vendor revision: Sep 1, 2026

Install the applicable fixed SonicWall release for your product and branch.

Vendor-listed releases

  • SMA1000 Models - 6210, 7210, 8200v: 12.4.3-03526 (platform-hotfix) and higher versions. 12.5.0-02952 (platform-hotfix) and higher versions.
CISA KEVListedObserved exploitation
EPSS8.0%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors1Source-linked actor relationships
Overview

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.

Source: NVD

CISA says: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.CISA catalog due date Sep 5, 2026