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    CVE-2015-5736

    The Fortishield.sys driver in Fortinet FortiClient before 5.2.4 allows local users to execute arbitrary code with kernel privileges by setting the callback function in a (1) 0x220024 or (2) 0x220028 ioctl call.

    Published:Sep 3, 2015
    Last Modified:Apr 12, 2025
    EPS:Sep 3, 2015
    EPSS Score:0.0248
    CVSS Score:7.2

    Affected Products

    Vendor
    Fortinet
    Product
    Forticlient

    Exploits

    https://www.exploit-db.com/exploits/45149https://github.com/avielzecharia/CVE-2015-5736https://www.exploit-db.com/exploits/41721https://www.exploit-db.com/exploits/41722

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-70465 (CVSS 8.1) — A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClient…
    CVE-2026-44278 (CVSS 2.3) — A use of hard-coded cryptographic key vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.2, FortiC…
    CVE-2026-24018 (CVSS 7.8) — A UNIX symbolic link (Symlink) following vulnerability in Fortinet FortiClientLinux 7.4.0 through 7.4.4, Forti…
    CVE-2025-62676 (CVSS 7.1) — An Improper Link Resolution Before File Access ('Link Following') vulnerability [CWE-59] vulnerability in Fort…
    CVE-2025-54660 (CVSS 5.5) — An active debug code vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.…
    CVE-2025-46373 (CVSS 7.8) — A Heap-based Buffer Overflow vulnerability [CWE-122] vulnerability in Fortinet FortiClientWindows 7.4.0 throug…
    CVE-2025-47761 (CVSS 7.8) — An Exposed IOCTL with Insufficient Access Control vulnerability [CWE-782] vulnerability in Fortinet FortiClien…
    CVE-2025-46774 (CVSS 7.5) — An Improper Verification of Cryptographic Signature vulnerability [CWE-347] in FortiClient MacOS installer ver…
    CVE-2025-31365 (CVSS 5.8) — An Improper Control of Generation of Code ('Code Injection') vulnerability [CWE-94] in FortiClientMac 7.4.0 th…
    CVE-2025-57716 (CVSS 6.7) — An Uncontrolled Search Path Element vulnerability [CWE-427] in FortiClient Windows 7.4.0 through 7.4.3, 7.2.0 …

    References

    http://fortiguard.com/advisory/mulitple-vulnerabilities-in-forticlient
    http://packetstormsecurity.com/files/133398/FortiClient-Antivirus-Information-Exposure-Access-Control.html
    http://seclists.org/fulldisclosure/2015/Sep/0
    http://www.coresecurity.com/advisories/forticlient-antivirus-multiple-vulnerabilities
    http://www.fortiguard.com/advisory/mulitple-vulnerabilities-in-forticlient
    http://www.securityfocus.com/archive/1/536369/100/0/threaded
    http://www.securitytracker.com/id/1033439
    https://www.exploit-db.com/exploits/41721/
    https://www.exploit-db.com/exploits/41722/
    https://www.exploit-db.com/exploits/45149/
    http://fortiguard.com/advisory/mulitple-vulnerabilities-in-forticlient
    http://packetstormsecurity.com/files/133398/FortiClient-Antivirus-Information-Exposure-Access-Control.html
    http://seclists.org/fulldisclosure/2015/Sep/0
    http://www.coresecurity.com/advisories/forticlient-antivirus-multiple-vulnerabilities
    http://www.fortiguard.com/advisory/mulitple-vulnerabilities-in-forticlient
    http://www.securityfocus.com/archive/1/536369/100/0/threaded
    http://www.securitytracker.com/id/1033439
    https://www.exploit-db.com/exploits/41721/
    https://www.exploit-db.com/exploits/41722/
    https://www.exploit-db.com/exploits/45149/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High