CVE-2021-42923

Name: CVE-2021-42923
Creator: NVD / NIST
Published: 2022-07-18T00:15:08.457+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.3/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2021-42923 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. ShowMyPC 3606 on Windows suffers from a DLL hijack vulnerability. If an attacker overwrites the file %temp%\ShowMyPC\-ShowMyPC3606\wodVPN.dll, it will run any malicious code contained in that file. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

ShowMyPC 3606 on Windows suffers from a DLL hijack vulnerability. If an attacker overwrites the file %temp%\ShowMyPC\-ShowMyPC3606\wodVPN.dll, it will run any malicious code contained in that file. The code will run with normal user privileges unless the user specifically runs ShowMyPC as administrator.

Metrics

CVSS 3.1

7.3/10

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

EPSS Probability

0.21%

10.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-427

Affected Software

Vendor	Product	Versions
Showmypc	Showmypc	3606

References

http://showmypc.comProduct, Vendor Advisory
https://f20.be/cves/showmypc-cve-2021-42923Third Party Advisory
http://showmypc.comProduct, Vendor Advisory
https://f20.be/cves/showmypc-cve-2021-42923Third Party Advisory

Timeline

Published: Jul 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42923?

How severe is CVE-2021-42923?

CVE-2021-42923 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42923?

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-2021-42923?

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

Scan your code now

Source: NVD / NIST