High severity8.1NVD Advisory· Published Sep 8, 2026· Updated Oct 15, 2026
CVE-2026-84393
CVE-2026-84393
Description
A improper validation of certificate with host mismatch vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6, FortiProxy 7.6.2 through 7.6.6 may allow attacker to information disclosure via
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: 7.6.2 - 7.6.6
Patches
Vulnerability mechanics
References
2News mentions
4- ⚡ Weekly Recap: Rogue AI Agents, WeChat Worm, PaperCut Attacks, AI Espionage, and RootkitsThe Hacker News · Sep 14, 2026
- Weekly Cybersecurity Newsletter Bulletin – Microsoft 0-day, FortiOS, PAN-OS Flaw, Revolut Data Breach, and 20+ StoriesCyber Security News · Sep 14, 2026
- Fortinet Patches Critical Vulnerabilities in FortiMonitorOnSight, Chrome ExtensionSecurityWeek · Sep 9, 2026
- FortiOS and FortiProxy ZTNA Validation Vulnerability Allows Attacker to Perform a Man-in-the-Middle AttackCyber Security News · Sep 8, 2026