CISA Flags SonicWall SonicOS MFA Bypass Flaw Amid Reports of Possible Exploitation

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a high-severity vulnerability impacting SonicWall SonicOS to its Known Exploited Vulnerabilities (KEV) catalog, following reports that it said may have been exploited in real-world attacks.

The vulnerability, tracked as CVE-2026-19868 (CVSS score: 7.1 / 7.5), has been described as an authentication reinforcement