# CVE-2026-19868 — SonicWall SonicOS

**CISA KEV**

> As of 2026-11-06, CVE-2026-19868 is a HIGH-severity vulnerability in SonicWall SonicOS, CVSS v3.1 7.5. It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-11-06), with a US federal remediation deadline of 2026-11-20. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-19868, most recently “CISA KEV Addition: SonicWall SonicOS SSLVPN Single-Factor Authentication / SAML Bypass Vulnerability (CVE-2026-19868)”.

**Last updated:** 2026-11-06

## What is CVE-2026-19868?

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).

The record classifies CVE-2026-19868 under weakness class [CWE-308](https://cwe.mitre.org/data/definitions/308.html). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 1 day ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N`)
- **CISA KEV:** Listed since 2026-11-06, federal remediation deadline 2026-11-20
- **Threadlinqs priority:** 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
- **Published:** 2026-11-06

## Is CVE-2026-19868 being exploited?

CISA added CVE-2026-19868 to the Known Exploited Vulnerabilities catalog on 2026-11-06, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-11-20 under BOD 22-01. It currently carries a trending score of 45 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [SonicWall](https://intel.threadlinqs.com/vendors/sonicwall): SonicOS

## How to fix CVE-2026-19868

Vendor advisory: [https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014). Because CVE-2026-19868 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-11-20. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-19868

1 tracked threat in the Threadlinqs corpus references CVE-2026-19868, either in the campaign’s CVE list or as an indicator on the campaign record.

- [CISA KEV Addition: SonicWall SonicOS SSLVPN Single-Factor Authentication / SAML Bypass Vulnerability (CVE-2026-19868)](https://intel.threadlinqs.com/threat/TL-2026-5447) — CRITICAL · 2026-11-06

## Sources

Enriched from CVE.org, NVD, CISA KEV. Last verified by Threadlinqs on 2026-11-07. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [psirt.global.sonicwall.com — vendor advisory](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-19868
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