CVE intelligenceCISA KEV

CVE-2026-83548

SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability

Published Sep 1, 2026Sources checked Sep 12, 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.

CISA KEVListedObserved exploitation

EPSS4.7%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.