Description
The (1) mdare64_48.sys, (2) mdare32_48.sys, (3) mdare32_52.sys, and (4) mdare64_52.sys drivers in Fortinet FortiClient before 5.2.4 allow local users to read arbitrary kernel memory via a 0x22608C ioctl call.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Fortinet FortiClient 5.2.3 (Windows 10 x64 Creators) - Local Privilege Escalation EDB-45149 · local · Aug 5, 2018 · verified
GitHub 1 repository
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ApexPredator-InfoSec/forti_shield ★ 2 · Oct 29, 2025
A combined POC for CVE-2021-31955, CVE-2015-4077, and CVE-2015-5736
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://www.coresecurity.com/advisories/forticlient-antivirus-multiple-vulnerabilities
- http://packetstormsecurity.com/files/133398/FortiClient-Antivirus-Information-Exposure-Access-Control.html
- 45149 exploit
- 1033439 vdb-entry
- http://www.fortiguard.com/advisory/mulitple-vulnerabilities-in-forticlient
- 20150901 [CORE-2015-0013] - FortiClient Antivirus Multiple Vulnerabilities mailing-list
- http://fortiguard.com/advisory/mulitple-vulnerabilities-in-forticlient
- 20150901 [CORE-2015-0013] - FortiClient Antivirus Multiple Vulnerabilities mailing-list