CVE-2026-19868 — SonicWall SonicOS SSLVPN Use of Single-factor Authentication Vulnerability

Impacted if

SonicWall SonicOS SSLVPN

over the network · no login

An authentication enforcement vulnerability in SonicOS SSLVPN service may allow a user with valid credentials for an alternate authentication method to bypass SAML authentication controls.

CISA Known Exploited Vulnerabilities

Added on 2026-11-06, federal remediation due 2026-11-20. SonicWall SonicOS SSLVPN contains a use of single-factor authentication vulnerability that may allow a user with valid credentials for an alternate authentication method to bypass SAML authentication controls. Successful exploitation may also bypass SAML-enforced multi-factor authentication (MFA).

Required action: 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.

First seen by AX-NEWS . Severity: NVD, or the CVE record while the NVD has not scored it. This product uses data from the NVD API but is not endorsed or certified by the NVD.