CVE-2025-54660: An active debug code vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.

Routine

MEDIUM 5.5UPGRADE

CVE-2025-54660 is a medium-severity flaw (CVSS 5.5) affecting forticlient. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-489
Published	2025-11-18
Last modified	2026-10-18

Publisher (CNA): Fortinet, Inc. · Vendor: fortinet

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-18 17:16 UTCPublished CVE record published
2026-10-18 20:10 UTCUpdated Record last modified

fortinet forticlient UPGRADE

Affected: >= 7.0.0 and < 7.2.11 · >= 7.4.0 and < 7.4.4

Fixed in: 7.2.11, 7.4.4

Safe to downgrade to: a release before 7.0.0

1. Check installed version

apt-cache policy forticlient || rpm -q forticlient || forticlient --version

2. UPGRADE to 7.2.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade forticlient

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade forticlient

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.0.0 (Debian / Ubuntu)

apt-cache madison forticlient sudo apt install forticlient=<VERSION_BEFORE_7.0.0> sudo apt-mark hold forticlient

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list forticlient sudo dnf downgrade forticlient-<VERSION_BEFORE_7.0.0> sudo dnf versionlock add forticlient

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-54660?

forticlient: upgrade to 7.2.11, 7.4.4. Exact commands for each OS are on this page.

Is CVE-2025-54660 being exploited?

CVE-2025-54660 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-54660 affect?

CVE-2025-54660 affects forticlient. Severity is medium (CVSS 5.5). 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

How urgent is CVE-2025-54660?

Priority 21/100. No elevated risk signals yet.

Software pages

Fortinet vulnerabilities

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References

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