CVE-2019-6692 — A malicious DLL preload vulnerability in Fortinet FortiClient for Windows 6

A malicious DLL preload vulnerability in Fortinet FortiClient for Windows 6.2.0 and below allows a privileged attacker to perform arbitrary code execution via forging that DLL.

01What is this vulnerability?

A malicious DLL preload vulnerability in Fortinet FortiClient for Windows 6.2.0 and below allows a privileged attacker to perform arbitrary code execution via forging that DLL.

02Affected products

Vendor	Product	Versions
n	a / Fortinet FortiClient for Windows	FortiClient for Windows 6.2.0 and below

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-10-24T13:46:16.000Z
• Last modified: 2024-10-25T14:28:28.747Z

09References

• fortiguard.com — https://fortiguard.com/psirt/FG-IR-19-148