CVE-2026-84393
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 inf…
Published Sep 8, 2026 · updated Oct 15, 2026 · Fortinet FortiOS
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
Timeline
Detection, updates, and resolution for this record.
Sep 8, 2026 · NIST NVD
Detected
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
Oct 15, 2026 · NIST NVD
Updated
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
Affected
- vendor Fortinet FortiOSversion unspecified
- vendor Fortinet FortiProxyversion unspecified
Sources
- CIRCL Vulnerability LookupCVE-2026-84393
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
vulnerability.circl.lu - CVE.orgCVE-2026-84393
Official CVE identifier
cve.org - NIST NVDCVE-2026-84393
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
nvd.nist.gov