CVE-2022-4956

Name: CVE-2022-4956
Creator: NVD / NIST
Published: 2023-09-30T17:15:39.323+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2022-4956 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.39%

30.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-427

Affected Software

Vendor	Product	Versions
Caphyon	Advanced Installer	19.7

References

https://heegong.github.io/posts/Advaned-Installer-Local-Privilege-Escalation-Vulnerability/Exploit, Third Party Advisory
https://vuldb.com/?ctiid.240903Permissions Required
https://vuldb.com/?id.240903Third Party Advisory
https://www.advancedinstaller.com/release-19.7.1.html#bugfixesRelease Notes
https://heegong.github.io/posts/Advaned-Installer-Local-Privilege-Escalation-Vulnerability/Exploit, Third Party Advisory
https://vuldb.com/?ctiid.240903Permissions Required
https://vuldb.com/?id.240903Third Party Advisory
https://www.advancedinstaller.com/release-19.7.1.html#bugfixesRelease Notes

Timeline

Published: Sep 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-4956?

How severe is CVE-2022-4956?

CVE-2022-4956 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2022-4956?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-4956?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST