CVE-2025-47761: An Exposed IOCTL with Insufficient Access Control vulnerability [CWE-782] vulnerability in Fortinet FortiClien

Routine

HIGH 7.8UPGRADE

CVE-2025-47761 is a high-severity flaw (CVSS 7.8) affecting forticlient. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Exposed IOCTL with Insufficient Access Control vulnerability [CWE-782] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.9 may allow an authenticated local user to execute unauthorized code via fortips driver. Success of the attack would require bypassing the Windows memory protections such as Heap integrity and HSP. In addition, it requires a valid and running VPN IPSec connection.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-782
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: >= 7.2.0 and < 7.2.10 · >= 7.4.0 and < 7.4.4

Fixed in: 7.2.10, 7.4.4

Safe to downgrade to: a release before 7.2.0

1. Check installed version

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

2. UPGRADE to 7.2.10 (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 7.2.0 (Debian / Ubuntu)

apt-cache madison forticlient sudo apt install forticlient=<VERSION_BEFORE_7.2.0> 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_7.2.0> 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-2025-47761?

forticlient: upgrade to 7.2.10, 7.4.4. Exact commands for each OS are on this page.

Is CVE-2025-47761 being exploited?

CVE-2025-47761 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-2025-47761 affect?

CVE-2025-47761 affects forticlient. Severity is high (CVSS 7.8). An Exposed IOCTL with Insufficient Access Control vulnerability [CWE-782] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.9 may allow an authenticated local user to execute unauthorized

How urgent is CVE-2025-47761?

Priority 29/100. High severity

Software pages

Windows vulnerabilities · Fortinet vulnerabilities

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References

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