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Fortinet Fortigate Format String in CAPWAP fast-failover mode (FG-IR-25-795)

medium Nessus Plugin ID 298524

Synopsis

Fortinet Firewall is missing one or more security-related updates.

Description

The version of Fortigate installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-25-795 advisory.

 - A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0 all versions allows an authenticated admin to execute unauthorized code or commands via specifically crafted configuration.
 (CVE-2025-64157)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

For 7.0.x / 7.2.x, see vendor advisory. For 7.4.x, upgrade to Fortigate version 7.4.10 or later. For 7.6.x, upgrade to Fortigate version 7.6.5 or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-25-795

Plugin Details

Severity: Medium

ID: 298524

File Name: fortigate_FG-IR-25-795.nasl

Version: 1.1

Type: local

Family: Firewalls

Published: 2/10/2026

Updated: 2/10/2026

Supported Sensors: Nessus

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

Vector: CVSS2#AV:L/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2025-64157

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Required KB Items: Host/Fortigate/model, Host/Fortigate/version

Exploit Ease: No known exploits are available

Patch Publication Date: 2/10/2026

Vulnerability Publication Date: 2/10/2026

Reference Information

CVE: CVE-2025-64157