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CVE-2026-19868

High CVSS 7.5 Known exploited

Published 2026-11-06 · last changed 2026-11-06 · added to CISA KEV 2026-11-06

This one is being exploited in the wild.

CISA added CVE-2026-19868 to the Known Exploited Vulnerabilities catalog on 2026-11-06. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2026-19868, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

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. Successful exploitation may also bypass SAML-enforced multi-factor authentication (MFA).

Sources

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N