CISA adds SonicWall SonicOS MFA bypass to KEV catalog
Original title: CISA Flags SonicWall SonicOS MFA Bypass Flaw Amid Reports of Possible Exploitation
CISA urges FCEB agencies to patch by November 20, 2026; possible exploitation reported
CISA added a high-severity SonicWall SonicOS vulnerability to its KEV catalog. The flaw allows bypass of SAML-enforced MFA via alternate authentication methods. SonicWall confirmed investigation into potential real-world exploitation and urged immediate updates. Additional high-severity flaws were patched in the same advisory.
Unconfirmed: possible exploitation is reported but not confirmed
- CVE-2026-19868 is an authentication reinforcement vulnerability
- CVE-2026-107155 is a permissive cross-domain policy flaw
- CVE-2026-107154 is a session validation vulnerability
- CVE-2026-82308 is a pre-authentication buffer overflow
- FCEB agencies must patch by November 20, 2026
Impact: bypass SAML-enforced multi-factor authentication
- 1.update to latest SonicWall SonicOS
- 2.apply patches by November 20, 2026
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-2026-19868 | SAML bypass in SonicWall SonicOS SSLVPN | 7.5 | <1% | KEVPoC | KEV |
From the original article
1 min read at thehackernews.com
The U. S. Cybersecurity and Infrastructure Security Agency (CISA) has added a high-severity vulnerability impacting SonicWall SonicOS to its Known Exploited Vulnerabilities (KEV) catalog, following reports that it said may have been exploited in real-world attacks.
thehackernews.com
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