High [CVE-2025-46373] 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"
This high-severity Fortinet advisory covers CVE-2025-46373 affecting FortiClientWindows.
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Summary
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
- FortiClientWindows: 7.2.0 through 7.4.3 (vendor-listed versions)
Official advisory · high-confidence parse· fetched 23 days ago·verify at source
- FortiClientWindows 7.4: 7.4.4
- FortiClientWindows 7.2: 7.2.9
Official advisory · high-confidence parse· fetched 23 days ago·verify at source
Mitigation checklist
- Upgrade per the Affected/Solution table: FortiClientWindows 7.4: 7.4.4; FortiClientWindows 7.2: 7.2.9.
Official advisory · high-confidence parse· fetched 23 days ago·verify at source
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