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Forticlient CVE-2025-54660

MEDIUM
Active Debug Code (CWE-489)
2025-11-18 psirt@fortinet.com
5.5
CVSS 3.1 · Vendor: fortinet
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V14 - Configuration Dependency management, component inventory
Impact

CVSS score of 5.5 (MEDIUM). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.02%.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

An active debug code vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.10, FortiClientWindows 7.0 all versions may allow a local attacker to run. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-489. An active debug code vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.10, FortiClientWindows 7.0 all versions may allow a local attacker to run the application step by step and retrieve the saved VPN user password Affected products include: Fortinet Forticlient. Version information: through 7.4.3.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (fortinet) PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from Vendor (fortinet) · only source for this CVE.

CVSS VectorVendor: fortinet

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

An active debug code vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.10, FortiClientWindows 7.0 all versions may allow a local attacker to run the application step by step and retrieve the saved VPN user password

Executive ViewAI

Why It Matters

Organizations using Fortinet FortiClientWindows 7.4.0 should be aware of moderate risk from CVE-2025-54660 rated CVSS 5.5. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score
0.0%
Top 94% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Low

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:*
cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:*
CVE-2017-7344 HIGH POC
8.1 Dec 14

A privilege escalation in Fortinet FortiClient Windows 5.4.3 and earlier as well as 5.6.0 allows attacker to gain privil

CVE-2015-5736 HIGH POC
7.2 Sep 03

The Fortishield.sys driver in Fortinet FortiClient before 5.2.4 allows local users to execute arbitrary code with kernel

CVE-2024-3661 HIGH POC
7.6 May 06

DHCP can add routes to a client’s routing table via the classless static route option (121). Rated high severity (CVSS 7

CVE-2019-5589 HIGH
8.8 May 28

DLL search-path hijacking in the FortiClient Online Installer for Windows (all versions before 6.0.6) lets an attacker w

CVE-2017-14184 HIGH
8.8 Dec 15

An Information Disclosure vulnerability in Fortinet FortiClient for Windows 5.6.0 and below versions, FortiClient for Ma

CVE-2015-1453 MEDIUM POC
5.0 Feb 02

The qm class in Fortinet FortiClient 5.2.3.091 for Android uses a hardcoded encryption key of FoRtInEt!AnDrOiD, which ma

CVE-2016-8493 HIGH
8.8 Jun 26

In FortiClientWindows 5.4.1 and 5.4.2, an attacker may escalate privilege via a FortiClientNamedPipe vulnerability. Rate

CVE-2024-36513 HIGH
8.8 Nov 12

A privilege context switching error vulnerability [CWE-270] in FortiClient Windows version 7.2.4 and below, version 7.0.

CVE-2015-1570 MEDIUM POC
4.3 Feb 10

The Endpoint Control protocol implementation in Fortinet FortiClient 5.2.3.091 for Android and 5.2.028 for iOS does not

CVE-2015-1569 MEDIUM POC
4.3 Feb 10

Fortinet FortiClient 5.2.028 for iOS does not validate certificates, which makes it easier for man-in-the-middle attacke

CVE-2026-70465 HIGH
8.1 Aug 12

Remote code execution in Fortinet FortiClientWindows affects versions 7.2.0-7.2.11 and 7.4.0-7.4.3, exploitable by any a

CVE-2023-45588 HIGH
8.2 Mar 14

An external control of file name or path vulnerability [CWE-73] in FortiClientMac version 7.2.3 and below, version 7.0.1

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