CVE-2025-4455 Patch My PC Home Updater System.IO uncontrolled search path
Local attackers can exploit uncontrolled search paths in Patch My PC Home Updater to execute arbitrary code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-4455?
CVE-2025-4455 is a high-severity path traversal vulnerability in Patch My PC Home Updater, published on 9 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in Patch My PC Home Updater up to 5.1.3.0. It has been rated as critical. This issue affects some unknown processing in the library advapi32.dll/BCrypt.dll/comctl32.dll/crypt32.dll/dwmapi.dll/gdi32.dll/gdiplus.dll/imm32.dll/iphlpapi.dll/kernel32.dll/mscms.dll/msctf.dll/ntdll.dll/ole32.dll/oleaut32.dll/PresentationNative_cor3.dll/secur32.dll/shcore.dll/shell32.dll/sspicli.dll/System.IO. The manipulation leads to uncontrolled search path. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-4455?
How do I fix CVE-2025-4455?
No fix has been published for CVE-2025-4455 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-4455 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4455 exists.
Sources
Also known as GHSA-q29p-vg3v-q6c5.