Log in Start free

Vulnerability · Published Oct 14, 2025 · Assigned by fortinet

CVE-2025-25253

Medium 6.8

In plain English

A medium-severity security flaw in FortiOS from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.1%top 98.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An Improper Validation of Certificate with Host Mismatch vulnerability [CWE-297] in FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions and FortiOS version 7.6.2 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions ZTNA proxy may allow an unauthenticated attacker in a man-in-the middle position to intercept and tamper with connections to the ZTNA proxy

Affected products (as reported)

VendorProductVersions
Fortinet FortiProxy 7.6.0 – through 7.6.17.4.0 – through 7.4.87.2.0 – through 7.2.157.0.0 – through 7.0.22
Fortinet FortiOS 7.6.0 – through 7.6.27.4.0 – through 7.4.87.2.0 – through 7.2.127.0.0 – through 7.0.18
Fortinet FortiPAM 1.4.1

Weakness: CWE-297 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References