Fortinet Vulnerabilities and Affected Products
Vulnerabilities associated with FortiClientWindows.
Products
Clear product- FortiOS182 vulnerabilities
- FortiProxy106 vulnerabilities
- FortiManager82 vulnerabilities
- FortiWeb75 vulnerabilities
- FortiAnalyzer68 vulnerabilities
- FortiSandbox47 vulnerabilities
- Fortinet FortiOS39 vulnerabilities
- FortiPAM37 vulnerabilities
- FortiADC33 vulnerabilities
- FortiClientWindows27 vulnerabilities
- Fortinet FortiWeb27 vulnerabilities
- FortiPortal25 vulnerabilities
- FortiNAC23 vulnerabilities
- FortiSIEM23 vulnerabilities
- FortiMail22 vulnerabilities
- FortiClientEMS21 vulnerabilities
- FortiSwitchManager20 vulnerabilities
- FortiVoice20 vulnerabilities
- FortiClientMac15 vulnerabilities
- Fortinet FortiMail15 vulnerabilities
- FortiManager Cloud14 vulnerabilities
- FortiRecorder14 vulnerabilities
- FortiSOAR14 vulnerabilities
- FortiWLM14 vulnerabilities
- FortiNDR13 vulnerabilities
| Vulnerability | Title and context | CVSS | EPSS | PoCs | Signals | STIX action |
|---|---|---|---|---|---|---|
CVE-2026-70465HIGH | Generated title:Fortinet FortiClientWindows Classic Buffer Overflow Remote Code ExecutionA buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets. CWE-120Aug 12, 2026 | CVSS7.3v3.1 | EPSS0.548% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
Generated title:Fortinet FortiClientWindows Hard-coded Cryptographic Key Information DisclosureA use of hard-coded cryptographic key vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.2, FortiClientWindows 7.2 all versions may allow attacker to information disclosure via <insert attack vector here> CWE-321May 12, 2026 | CVSS2.1v3.1 | EPSS0.097% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX | |
CVE-2025-62676MEDIUM | Generated title:Fortinet FortiClientWindows Arbitrary File Write via Link FollowingAn Improper Link Resolution Before File Access ('Link Following') vulnerability [CWE-59] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.4, FortiClientWindows 7.2.0 through 7.2.12, FortiClientWindows 7.0 all versions may allow a local low-privilege attacker to perform an arbitrary file write with elevated permissions via crafted named pipe messages. CWE-59Feb 10, 2026 | CVSS6.4v3.1 | EPSS0.214% | PoCs1 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2025-54660MEDIUM | 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 CWE-489Nov 18, 2025 | CVSS4.9v3.1 | EPSS0.151% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2025-46373HIGH | A Heap-based Buffer Overflow vulnerability [CWE-122] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys". The attacker would need to bypass the Windows heap integrity protections CWE-122Nov 18, 2025 | CVSS7.1v3.1 | EPSS0.15% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2025-47761HIGH | 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. CWE-782Nov 18, 2025 | CVSS7.1v3.1 | EPSS0.155% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2025-57716MEDIUM | An Uncontrolled Search Path Element vulnerability [CWE-427] in FortiClient Windows 7.4.0 through 7.4.3, 7.2.0 through 7.2.11, 7.0 all versions may allow a local low privileged user to perform a DLL hijacking attack via placing a malicious DLL to the FortiClient Online Installer installation folder. CWE-427Oct 14, 2025 | CVSS6.0v3.1 | EPSS0.165% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2024-54019MEDIUM | A improper validation of certificate with host mismatch in Fortinet FortiClientWindows version 7.4.0, versions 7.2.0 through 7.2.6, and 7.0 all versions allow an unauthorized attacker to redirect VPN connections via DNS spoofing or another form of redirection. CWE-297Jun 10, 2025 | CVSS4.4v3.1 | EPSS0.141% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2025-24473MEDIUM | A exposure of sensitive system information to an unauthorized control sphere vulnerability in Fortinet FortiClientWindows 7.2.0 through 7.2.1, FortiClientWindows 7.0.13 through 7.0.14 may allow an unauthorized remote attacker to view application information via navigation to a hosted webpage, if Windows is configured to accept incoming connections to port 8053 (non-default setup) CWE-497May 28, 2025 | CVSS4.8v3.1 | EPSS0.468% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2020-9295MEDIUM | FortiOS 6.2 running AV engine version 6.00142 and below, FortiOS 6.4 running AV engine version 6.00144 and below and FortiClient 6.2 running AV engine version 6.00137 and below may not immediately detect certain types of malformed or non-standard RAR archives, potentially containing malicious files. Based on the samples provided, FortiClient will detect the malicious files upon trying extraction by real-time scanning and FortiGate will detect the malicious archive if Virus Outbreak Prevention is… CWE-358Mar 17, 2025 | CVSS4.7v3.1 | EPSS0.312% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2024-40586MEDIUM | An Improper Access Control vulnerability [CWE-284] in FortiClient Windows version 7.4.0, version 7.2.6 and below, version 7.0.13 and below may allow a local user to escalate his privileges via FortiSSLVPNd service pipe. CWE-284Feb 11, 2025 | CVSS6.3v3.1 | EPSS0.243% | PoCs1 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
A use of hard-coded cryptographic key in Fortinet FortiClientWindows version 7.4.0, 7.2.x all versions, 7.0.x all versions, and 6.4.x all versions may allow a low-privileged user to decrypt interprocess communication via monitoring named piped. | CVSS3.2v3.1 | EPSS0.22% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX | |
CVE-2024-50570MEDIUM | Fortinet forticlient Cleartext Storage of Sensitive InformationA Cleartext Storage of Sensitive Information vulnerability [CWE-312] in FortiClientWindows 7.4.0 through 7.4.1, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13 and FortiClientLinux 7.4.0 through 7.4.2, 7.2.0 through 7.2.7, 7.0.0 through 7.0.13 may permit a local authenticated user to retrieve VPN password via memory dump, due to JavaScript's garbage collector CWE-312Dec 18, 2024 | CVSS4.9v3.1 | EPSS0.141% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2024-47574HIGH | A authentication bypass using an alternate path or channel in Fortinet FortiClientWindows version 7.4.0, versions 7.2.4 through 7.2.0, versions 7.0.12 through 7.0.0, and 6.4.10 through 6.4.0 allows low privilege attacker to execute arbitrary code with high privilege via spoofed named pipe messages. | CVSS7.4v3.1 | EPSS0.462% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2024-36507MEDIUM | A untrusted search path in Fortinet FortiClientWindows versions 7.4.0, versions 7.2.4 through 7.2.0, versions 7.0.12 through 7.0.0 allows an attacker to run arbitrary code via DLL hijacking and social engineering. CWE-426Nov 12, 2024 | CVSS6.7v3.1 | EPSS0.282% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2024-36513HIGH | A privilege context switching error vulnerability [CWE-270] in FortiClient Windows version 7.2.4 and below, version 7.0.12 and below, 6.4 all versions may allow an authenticated user to escalate their privileges via lua auto patch scripts. CWE-270Nov 12, 2024 | CVSS7.4v3.1 | EPSS0.219% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2022-45856MEDIUM | An improper certificate validation vulnerability [CWE-295] in FortiClientWindows 6.4 all versions, 7.0.0 through 7.0.7, FortiClientMac 6.4 all versions, 7.0 all versions, 7.2.0 through 7.2.4, FortiClientLinux 6.4 all versions, 7.0 all versions, 7.2.0 through 7.2.4, FortiClientAndroid 6.4 all versions, 7.0 all versions, 7.2.0 and FortiClientiOS 5.6 all versions, 6.0.0 through 6.0.1, 7.0.0 through 7.0.6 SAML SSO feature may allow an unauthenticated attacker to man-in-the-middle the communication b… CWE-295Sep 10, 2024 | CVSS4.6v3.1 | EPSS0.231% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2024-31489MEDIUM | AAn improper certificate validation vulnerability [CWE-295] in FortiClientWindows 7.2.0 through 7.2.2, 7.0.0 through 7.0.11, FortiClientLinux 7.2.0, 7.0.0 through 7.0.11 and FortiClientMac 7.0.0 through 7.0.11, 7.2.0 through 7.2.4 may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the FortiGate and the FortiClient during the ZTNA tunnel creation CWE-295Sep 10, 2024 | CVSS6.4v3.1 | EPSS0.365% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2022-40681HIGH | A incorrect authorization in Fortinet FortiClient (Windows) 7.0.0 - 7.0.7, 6.4.0 - 6.4.9, 6.2.0 - 6.2.9 and 6.0.0 - 6.0.10 allows an attacker to cause denial of service via sending a crafted request to a specific named pipe. CWE-863Nov 14, 2023 | CVSS7.1v3.1 | EPSS0.21% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2023-33304MEDIUM | A use of hard-coded credentials vulnerability in Fortinet FortiClient Windows 7.0.0 - 7.0.9 and 7.2.0 - 7.2.1 allows an attacker to bypass system protections via the use of static credentials. CWE-798Nov 14, 2023 | CVSS4.4v3.1 | EPSS0.205% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2023-41840HIGH | A untrusted search path vulnerability in Fortinet FortiClientWindows 7.0.9 allows an attacker to perform a DLL Hijack attack via a malicious OpenSSL engine library in the search path. CWE-426Nov 14, 2023 | CVSS7.4v3.1 | EPSS0.311% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
An exposure of sensitive information to an unauthorized actor vulnerability [CWE-200] in FortiClient for Windows 7.2.0, 7.0 all versions, 6.4 all versions, 6.2 all versions, Linux 7.2.0, 7.0 all versions, 6.4 all versions, 6.2 all versions and Mac 7.2.0 through 7.2.1, 7.0 all versions, 6.4 all versions, 6.2 all versions, may allow a local authenticated attacker with no Administrative privileges to retrieve the list of files or folders excluded from malware scanning. CWE-200Oct 10, 2023 | CVSS3.0v3.1 | EPSS0.241% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX | |
CVE-2022-33877MEDIUM | An incorrect default permission [CWE-276] vulnerability in FortiClient (Windows) versions 7.0.0 through 7.0.6 and 6.4.0 through 6.4.8 and FortiConverter (Windows) versions 6.2.0 through 6.2.1, 7.0.0 and all versions of 6.0.0 may allow a local authenticated attacker to tamper with files in the installation folder, if FortiClient or FortiConverter is installed in an insecure folder. CWE-276Jun 13, 2023 | CVSS6.8v3.1 | EPSS0.22% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2022-43946HIGH | Multiple vulnerabilities including an incorrect permission assignment for critical resource [CWE-732] vulnerability and a time-of-check time-of-use (TOCTOU) race condition [CWE-367] vulnerability in Fortinet FortiClientWindows before 7.0.7 allows attackers on the same file sharing network to execute commands via writing data into a windows pipe. | CVSS7.3v3.1 | EPSS0.701% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2022-42470HIGH | A relative path traversal vulnerability in Fortinet FortiClient (Windows) 7.0.0 - 7.0.7, 6.4.0 - 6.4.9, 6.2.0 - 6.2.9 and 6.0.0 - 6.0.10 allows an attacker to execute unauthorized code or commands via sending a crafted request to a specific named pipe. | CVSS7.1v3.1 | EPSS0.346% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |