HOMEVULNERABILITIESCVE-2022-4956
HIGH

CVE-2022-4956

CWE-427Published: September 30, 2023· Updated: Jun 17, 2026

7.8
CVSS v3.1

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.

NVD Source

Technical Analysis

CVE-2022-4956 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

caphyon1 product(s)
advanced installer
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://heegong.github.io/posts/Advaned-Installer-Local-Privilege-Escalation-Vulnerability/
ADVISORYhttps://vuldb.com/?id.240903
ADVISORYhttps://heegong.github.io/posts/Advaned-Installer-Local-Privilege-Escalation-Vulnerability/
ADVISORYhttps://vuldb.com/?id.240903

All References (8)

→
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

Quick Facts

CVE IDCVE-2022-4956
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-427
CISA KEVNo
Affected1 vendor(s)
PublishedSep 30, 2023

Related CVEs (CWE-427)

CVE-2025-4981
9.9
CVE-2019-7653
9.8
CVE-2024-42190
9.8
CVE-2024-42191
9.8
CVE-2023-41117
9.8
CVE-2019-9546
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-4956 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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