CISA Flags SonicWall SonicOS MFA Bypass Flaw Amid Reports of Possible Exploitation
MentionsSonicWall
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. The vulnerability, tracked as CVE-2026-19868 (CVSS score: 7.1 / 7.5), has been described as an authentication reinforcement
Summary from The Hacker News.
Explained
The technology and terms in this story. Learn more
- DefenceMFA · Multi-factor authenticationRequiring a second proof besides a password, such as an app prompt, a code or a security key.
- ConceptKEV · Known Exploited Vulnerabilities catalogCISA's list of vulnerabilities with evidence of real-world exploitation.
- ConceptCVSS · Common Vulnerability Scoring SystemA 0–10 score for how severe a vulnerability is in theory.
- ConceptCISA · Cybersecurity and Infrastructure Security AgencyThe US government's cybersecurity agency, which issues alerts and runs the KEV catalog.
Why it was possible
The weaknesses behind this story's CVEs, from each CVE Record.
Vulnerabilities in this story
Severity and exploitation facts from NVD, FIRST, and CISA.
Related coverage
Other sources covering the same vulnerabilities or event.
SANS Stormcast Monday, November 9th, 2026: sshole Scans (CVE-2026-123158); SonicWall SonicOS MFA Bypass (CVE-2026-19868); Entra Device Registration (CVE-2026-109469); Claude Code Secrets Leak
Podcast7 minSANS Internet Storm Center StormCast2d agoVulnerabilitiesAIIdentityCVE-2026-109469CVE-2026-123158+1