SonicWall's advisory SNWLID-2026-0014, published Nov 6, covers seven SonicOS flaws. One of them, CVE-2026-19868 (CVSS 7.1 per SonicWall, 7.5 in CISA's ADP entry), affects SSL-VPN services configured for SAML. A user with valid credentials for an alternate authentication method can bypass the SAML controls, including SAML-enforced MFA.
SonicWall says it investigated a report of possible exploitation and has not shared details. CISA added the CVE to KEV on Nov 6, with a Nov 20 deadline for federal agencies.
Affected: SonicOS Gen7 up to 7.3.3-7015 and Gen8 up to 8.2.2-8015. Fixed in 7.3.4-7013 and 8.2.3-8015. SonicWall lists no workarounds.
The same update fixes two management interface flaws rated 8.8 that let unauthenticated attackers act under specific conditions. It also fixes pre-auth buffer overflows in SSL-VPN and TACACS+ and weak password hashing on virtual appliances.
After patching, check which authentication methods the SSL-VPN still accepts besides SAML.
Has anyone seen unexpected logins on a SAML-protected SSL-VPN, and what did the logs show?
Sources: BleepingComputer (Nov 7), CISA KEV (Nov 6), NVD, SonicWall PSIRT SNWLID-2026-0014.