FortinetCVE-2025-53379
Fortinet FortiAuthenticator: out-of-bounds read
High7.5CVE-2025-53379 · Published Jul 14, 2026 · updated Jul 15, 2026
A out-of-bounds read vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.2, FortiAuthenticator 6.5 all versions may allow a remote unauthenticated attacker to retrieve sensitive information via a specially crafted request.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| FortiAuthenticator Product | >= 6.6.0, <= 6.6.2 | No fix yet |
| >= 6.5.0, <= 6.5.7 | No fix yet | |
| >= 6.4.0, <= 6.4.11 | No fix yet | |
| >= 6.3.0, <= 6.3.5 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-125
More Fortinet advisories
All Fortinet| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 14 | Fortinet FortiOS: path traversal | Medium5.5 | No fix yet |
| Jul 14 | Fortinet FortiOS: information disclosure | Medium4.3 | No fix yet |
| Jul 14 | Fortinet FortiSIEMWindowsAgent: privilege escalation | High7.5 | No fix yet |
| Jul 14 | Fortinet FortiSandbox: unauthenticated attacker could access the VNC server of... | High8.6 | No fix yet |
| Jul 14 | Fortinet FortiClientEMS: improper certificate validation | High7.5 | No fix yet |
| Jul 14 | Fortinet FortiOS: stack buffer overflow | Medium6.6 | No fix yet |