Authentication Bypass in SonicWall SonicOS SSLVPN Service
CVE-2026-19868
Key Information:
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What is CVE-2026-19868?
An authentication enforcement vulnerability has been identified in SonicWall SonicOS SSLVPN service, allowing users with valid credentials from an alternate authentication method to bypass SAML authentication controls. This flaw compromises the integrity of SAML-enforced multi-factor authentication (MFA), potentially allowing unauthorized access to sensitive resources. Organizations using SonicWall SonicOS SSLVPN should review their authentication configurations and apply necessary mitigations to safeguard against unauthorized access.
CISA has reported CVE-2026-19868
CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2026-19868 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace
The CISA's recommendation is: 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.
Affected Version(s)
SonicOS Gen7 7.3.3-7015 and older versions
SonicOS Gen7 8.2.2-8015 and older versions