CVE-2026-19868 Exploited in the wild
SonicWall SonicOS SSLVPN Use of Single-factor Authentication Vulnerability
- Risk score
- 78/100
- CVSS
- Not Scored
- Published
- 6 Nov 2026
- Added to CISA's exploited list
- 6 Nov 2026
Open in the live forecast Today's forecast
What to know
- What it is
- A vulnerability in SonicOS SSLVPN service allows users with valid credentials for an alternate authentication method to bypass SAML authentication controls, potentially bypassing multi-factor authentication. An attacker could exploit this to gain unauthorized access.
- Affected
- {'products': ['SonicOS SSLVPN'], 'packages': [], 'versions': []}
- Fix
- Apply mitigations in accordance with vendor instructions
- Exploitation
- Exploited in the wild
Story map
At a glance
Sonicwall Sonicos Sslvpn: Amber, patch this week. A vulnerability in SonicOS SSLVPN service allows users with valid credentials for an alternate authentication method to bypass SAML authentication controls, potentially bypassing multi-factor authentication. An attacker could exploit this to gain unauthorized access.
The flaws
- CVE-2026-19868: SonicWall SonicOS SSLVPN Use of Single-factor Authentication Vulnerability (exploited)
The fix
Fix: Apply mitigations in accordance with vendor instructions
Who is exposed: {'products': ['SonicOS SSLVPN'], 'packages': [], 'versions': []}
Where it stands
- Exploited in the wild
- On CISA's exploited list since 6 Nov
- US federal deadline 20 Nov
How it unfolded
- 6 Nov, CISA (official): Added to the Known Exploited Vulnerabilities list
- 6 Nov, CISA advisories (US) (official): CISA Adds One Known Exploited Vulnerability to Catalog
- 20 Nov, Deadline (official): US federal agencies must have patched by then
Connects to
- Same weakness: CWE-308 (CWE-308). 4 other warnings in 30 days
Why it is Amber
- Not yet scored by NVD
- Exploited in the wild (CISA KEV)
- Named in a government or vendor bulletin
CISA required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Government and vendor bulletins
References
Original description
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).
Last activity 6 Nov 2026. Patch Forecast updates every hour.