CVE-2026-19868: SonicWall SonicOS SSLVPN SAML authentication bypass

CVE-2026-19868 · Severity: critical · Exploited in the wild · Published 2026-11-06

SonicOS is firmware for network security appliances used to protect corporate network access through a VPN service. An authentication flaw allows users with valid credentials for an alternative login method to circumvent SAML-based authentication and multi-factor authentication controls, potentially allowing unauthorized access to protected networks.

Technologies: SonicWall SonicOS. Vendors: SonicWall.

Quick answers

Is CVE-2026-19868 exploited in the wild?
Yes. CVE-2026-19868 is known to be exploited in the wild, first recorded on 6 November 2026. Treat it as urgent.
How severe is CVE-2026-19868?
Critical severity, published 6 November 2026.
Which products and versions are affected?
SonicWall SonicOS.
Is there a fix for CVE-2026-19868?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-19868 attacked?
It is attacked over the network, in device firmware.
Am I affected by CVE-2026-19868?
Check whether you run SonicWall SonicOS or SonicWall Sonicos Sslvpn. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The SSLVPN service in SonicOS fails to properly enforce SAML authentication when users have credentials for an alternate authentication method. An attacker with valid alternate credentials can bypass SAML controls and MFA protections. The vulnerability requires valid credentials for an alternate authentication method and affects the VPN authentication pathway.

Affected products

  • SonicWall SonicOS

Timeline

  • 2026-11-06: disclosed

References

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