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

> Local attackers can exploit an uncontrolled search path in the WinSxS DLL handler to execute arbitrary code or escalate privileges.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Sep 2023
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-3w3w-2hqv-65f8

## What is CVE-2022-4956?

CVE-2022-4956 is a high-severity path traversal vulnerability in Caphyon Advanced Installer, published on 30 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official 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.

Weakness: CWE-427 (Uncontrolled Search Path Element)

## Which versions are affected by CVE-2022-4956?

It affects 1 product.


Products: Caphyon Advanced Installer.

## How do I fix CVE-2022-4956?

No fix has been published for CVE-2022-4956 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4956 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4956 exists.

## Other vulnerabilities in Caphyon Advanced Installer

- [CVE-2023-25396](https://insights.sbomify.com/CVE-2023-25396/): Privilege escalation in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4956 and fix it if it is affected.

What it is: CVE-2022-4956 is a high-severity path traversal vulnerability in Caphyon Advanced Installer, published on 30 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4956 exists.

Affected product: Caphyon Advanced Installer. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-4956/ (Markdown: https://insights.sbomify.com/CVE-2022-4956/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4956
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4956
- OSV: https://osv.dev/vulnerability/CVE-2022-4956

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-4956/
Summaries are generated and may contain mistakes; the official description above is the record.