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Known exploited vulnerability

CVE-2026-19868

highCVSS 3.1 7.5In CISA KEVEPSS 0.62%Published · SonicWall

The short answer

CVE-2026-19868 affects SonicWall SonicOS and is rated high (CVSS 7.5). CISA added it to the Known Exploited Vulnerabilities catalog on 2026-11-06: attackers are using it, so patch it first.

What it is

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).

Weakness: CWE-308.

Severity

7.5 high

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

Exploited (CISA KEV)

Yes, since Nov 6, 2026

Federal due date Nov 20, 2026

EPSS, next 30 days

0.62%

Higher than 50% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
Low
Availability impact
None

What CISA says to do

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…

Affected products

SonicOS. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2026-19868 being exploited?

Yes. CISA added CVE-2026-19868 to its Known Exploited Vulnerabilities catalog on 2026-11-06, with a federal remediation due date of 2026-11-20.

How do I fix CVE-2026-19868?

CISA's 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…

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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