SAML authentication bypass in SonicWall SonicOS SSLVPN service
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
SonicWall SonicOS 7.3.3-7015 and older versions and 8.2.2-8015 and older versions contain an authentication enforcement flaw in the SSLVPN service, classified as CWE-308. A remote user with valid credentials for an alternate authentication method can bypass SAML authentication controls, which can also skip SAML-enforced multi-factor authentication. The flaw is listed in CISA KEV, added 2026-11-06.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
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).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for SonicWall SonicOS. CISA requires U.S. federal agencies to fix it by 2026-11-20.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
SonicWall SonicOS — psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014
7 records Highest priority Priority CRITICAL 1 CRITICAL, 3 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-86074 Permissive cross-domain policy in SonicWall SonicOS managementPriority MEDIUM 41
- TI-2026-86073 Session validation flaw in SonicWall SonicOS management interfacePriority MEDIUM 41
- TI-2026-86072 Heap-based buffer overflow in SonicWall SonicOS SSL-VPN servicePriority MEDIUM 40
Timeline
- 2026-11-06 Added to CISA KEV
- 2026-11-06 Threatist record created from CVE-2026-19868
- 2026-11-06 CVSS score added · CISA ADP
- 2026-11-06 CISA SSVC decision points changed
- 2026-11-06 Priority changed: LOW → CRITICAL
- 2026-11-06 Alias added: GHSA-mq8w-j7h6-7q9w
- 2026-11-07 CISA SSVC decision points changed
References
More SonicWall vulnerabilities
- TI-2026-57684 Server-side request forgery in SonicWall SMA1000 KEVCVSS 3.1CRITICAL 10.0
- TI-2026-12965 Server-side request forgery in SonicWall SMA1000 KEVCVSS 3.1CRITICAL 10.0
- TI-2025-16819 Deserialization of untrusted data in SonicWall SMA1000 KEVCVSS 3.1CRITICAL 9.8
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
- TI-2021-03356 Stack-based buffer overflow in SonicWall SMA100 KEVCVSS 3.1CRITICAL 9.8
- TI-2021-03349 SQL injection in SonicWall SRA/SMA100 KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-19868 · CVE Program
- CVE-2026-19868 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-mq8w-j7h6-7q9w · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences