SonicWall SSLVPN Flaw Added to CISA KEV
CISA added CVE-2026-19868, a SonicWall SonicOS SSLVPN single-factor authentication flaw, to its Known Exploited Vulnerabilities catalog due to active exploitation.
Sourcecisa.gov — open the original
What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- CISA lists CVE-2026-19868 as exploited in the wild.
CISA has added CVE-2026-19868, affecting SonicWall SonicOS SSLVPN, to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation in the wild. The vulnerability relates to the use of single-factor authentication on SSLVPN, a common attack vector for threat actors seeking initial access to enterprise networks via exposed VPN gateways.
Under Binding Operational Directive (BOD) 26-04, Federal Civilian Executive Branch (FCEB) agencies are required to prioritize remediation of KEV-listed vulnerabilities on publicly exposed assets, particularly those that grant full post-exploitation control, and to check for prior compromise before patching. While BOD 26-04 is mandatory only for FCEB agencies, CISA recommends all organizations using affected SonicWall SonicOS SSLVPN deployments apply mitigations promptly, enforce multi-factor authentication on VPN access, and review systems for signs of compromise predating remediation.
Defenders operating SonicWall SSLVPN gateways should treat this as a high-priority patching item given confirmed exploitation, verify authentication configurations enforce MFA, and monitor for anomalous VPN logins consistent with credential-based access abuse.
Mentioned in this report
Source reporting: https://www.cisa.gov/news-events/alerts/2026/11/06/cisa-adds-one-known-exploited-vulnerability-catalog
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