Vulnerability · Published Jul 14, 2026 · Assigned by fortinet
CVE-2025-53379
High 7.0
In plain English
A high-severity out-of-bounds read in FortiAuthenticator from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).
Severity (CVSS 3.1)7.0High
Exploit odds (30 days)0.5%top 55.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiAuthenticator | 6.6.0 – through 6.6.26.5.0 – through 6.5.76.4.0 – through 6.4.116.3.0 – through 6.3.5 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C