TI-2022-04545 Aliases CVE-2022-4956 GHSA-3w3w-2hqv-65f8

Caphyon Advanced Installer WinSxS DLL uncontrolled search path

HIGH 69CWE-427Published 2023-09-30 · Updated 2024-08-03

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-427.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00409 35th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Caphyon	Advanced Installer	19.7	—	No fix listed	CNA

Advanced Installer VendorCaphyon Affected 19.7 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:caphyon:advanced_installer:19.7:::::::*	19.7	Vulnerable	Caphyon

cpe:2.3:a:caphyon:advanced_installer:19.7:*:*:*:*:*:*:* Versions 19.7 Vulnerable ·Caphyon

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-4956
2026-10-03 Alias added: GHSA-3w3w-2hqv-65f8

References

Exploit 1

https://heegong.github.io/posts/Advaned-Installer-Local-Privilege-Escalation-Vulnerability/

Patch 1

https://www.advancedinstaller.com/release-19.7.1.html#bugfixes

TI-2022-10466 Caphyon Ltd Advanced Installer 19.3 and earlier and many products that use the updater… CVSS 3.1HIGH 8.1
TI-2023-10732 Privilege escalation in the MSI repair functionality in Caphyon Advanced Installer 20.0… CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences