SonicWall SSL-VPN flaw CVE-2026-19868 can bypass SAML MFA
Original title: Hackers Exploit SonicWall SSL-VPN Vulnerability to Bypass Multi-Factor Authentication in Active Attacks
SonicWall calls exploitation only potential; Gen7 through 7.3.3-7015 and Gen8 through 8.2.2-8015 need firmware, with no workaround.
SonicWall advisory SNWLID-2026-0014, published November 6, 2026, describes CVE-2026-19868, a SonicOS SSL-VPN flaw scored CVSS 7.1. When SAML is enabled, an attacker with valid credentials for an alternate method can skip SAML and related MFA. PSIRT says it investigated a report of potential exploitation but does not confirm a campaign or name attackers. The same advisory covers six other defects, and fixed releases are 7.3.4-7013 and later for Gen7 and 8.2.3-8015 and later for Gen8.
Unconfirmed: SonicWall reports potential exploitation from an investigated report, not a confirmed campaign or identified attackers.
- CVE-2026-19868 is CWE-308 and needs alternate valid credentials, unlike CVE-2024-53704.
- CVSS vector is AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N.
- CVE-2026-107155 and CVE-2026-107154 score 8.8 on the management interface.
- CVE-2026-82308 is a pre-auth SSL-VPN heap overflow scored 7.5 with denial-of-service potential.
- TACACS+ flaws CVE-2026-77708 and CVE-2026-77709 score 5.9; CVE-2026-19703 weakens virtual-appliance hashing.
Impact: Bypass SAML and MFA using other valid credentials
| Product | Affected | Fixed in |
|---|---|---|
| SonicWall SonicOS Gen7 and NSv | 7.3.3-7015 or earlier | 7.3.4-7013 and later |
| SonicWall SonicOS Gen8 and NSv | 8.2.2-8015 or earlier | 8.2.3-8015 and later |
- 1.Install SonicOS 7.3.4-7013 or later on Gen7 and 8.2.3-8015 or later on Gen8.
- 2.Prioritize SAML-enabled SSL-VPN deployments; identity-provider MFA alone is not sufficient.
- CVEs
- CVE-2026-19868CVE-2026-107155CVE-2026-107154CVE-2026-82308CVE-2026-77708CVE-2026-77709CVE-2026-19703
- ATT&CK
- T1078 Valid Accounts
- Vendors
- SonicWall
- Organizations
- SonicWall PSIRT
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-107154 | Session validation vulnerability in SonicOS management interface | 8.8 | — | ||
CVE-2026-107155+1 related CVE | Permissive cross-domain policy in SonicOS management interface | 8.8 group max | — | ||
| CVE-2026-19703 | Weak password hashing in SonicOS virtual appliances | 5.1 | — | ||
| CVE-2026-19868 | SAML bypass in SonicWall SonicOS SSLVPN | 7.5 | <1% | KEVPoC | KEV |
CVE-2026-77708+1 related CVE | Pre-auth stack overflow in SonicOS TACACS+ client | 5.9 | — |
From the original article
2 min read at gbhackers.com
SonicWall has disclosed an SSL-VPN authentication enforcement flaw that could let attackers bypass SAML authentication and associated multi-factor authentication controls. Tracked as CVE-2026-19868, the issue carries a CVSS score of 7. 1.
By Eswar · gbhackers.com
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.