SonicWall SonicOS SSLVPN Use of Single-factor Authentication Vulnerability
SonicWall SonicOS SSLVPN contains a use of single-factor authentication vulnerability that 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).
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
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- SonicWall
- Product
- SonicOS SSLVPN
- CISA KEV
- added 6 Nov 2026, due 20 Nov 2026 (14d)
- Exploitation
- observed in the wild
- Fix
- available
- Weakness
- CWE-308
- Exposure class
- Edge / VPN / firewall
- NVD status
- Received
Why it ranks 90 (Critical)
- CISA KEV listed, remediation due 2026-11-20
- Exposed product class: edge / VPN / firewall
- Widely deployed vendor product (SonicWall)
- Covered by 3 independent sources
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- Vendor advisory (psirt.global.sonicwall.com)
- CVE-2026-19868 on this site · NVD · CVE.org · Vulnpedia · KEV
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