CVE-2025-46373

Published Nov 18, 2025 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Description

A Heap-based Buffer Overflow vulnerability [CWE-122] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys". The attacker would need to bypass the Windows heap integrity protections

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Fortinet

FortiClientWindows

unaffected

Version	Status	Constraints
`7.4.0`	affected	≤ 7.4.3
`7.2.0`	affected	≤ 7.2.8

Configuration 1 [-]

OR	cpe:2.3:a:fortinet:forticlient::::::windows::*
	cpe:2.3:a:fortinet:forticlient::::::windows::*

No data.

No data available yet.

Remediation

Vendor Solution

Upgrade to FortiClientWindows version 7.4.4 or above Upgrade to FortiClientWindows version 7.2.9 or above

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.164% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://fortiguard.fortinet.com/psirt/FG-IR-25-125

History

Aug 17, 2026 10:15 AM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}`	cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:R'}`

Dec 16, 2025 10:30 AM Description updated View changes

Type	Values Removed	Values Added
Description	A Heap-based Buffer Overflow vulnerability [CWE-122] in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys". The attacker would need to bypass the Windows heap integrity protections	A Heap-based Buffer Overflow vulnerability [CWE-122] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys". The attacker would need to bypass the Windows heap integrity protections

Nov 20, 2025 2:45 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Fortinet forticlient
CPEs		cpe:2.3:a:fortinet:forticlient::::::windows::*
Vendors & Products		Fortinet forticlient

Nov 18, 2025 10:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Nov 18, 2025 5:15 PM Description updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A Heap-based Buffer Overflow vulnerability [CWE-122] in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys". The attacker would need to bypass the Windows heap integrity protections
First Time appeared		Fortinet Fortinet forticlientwindows
Weaknesses		CWE-122
CPEs		cpe:2.3:a:fortinet:forticlientwindows:7.2.0:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.2.1:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.2.2:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.2.3:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.2.4:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.2.5:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.2.6:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.2.7:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.2.8:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.4.0:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.4.1:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.4.2:::::::* cpe:2.3:a:fortinet:forticlientwindows:7.4.3:::::::*
Vendors & Products		Fortinet Fortinet forticlientwindows
References		https://fortiguard.fortinet.com/psirt/FG-IR-25-125
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}`