CVE-2021-22000

Name: CVE-2021-22000
Creator: NVD / NIST
Published: 2021-07-13T19:15:09.403+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2021-22000 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. VMware Thinapp version 5.x prior to 5.2.10 contain a DLL hijacking vulnerability due to insecure loading of DLLs. A malicious actor with non-administrative privileges may exploit this vulnerability to elevate privileges to administrator level on the Windows operating system having VMware ThinApp installed on it.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

VMware Thinapp version 5.x prior to 5.2.10 contain a DLL hijacking vulnerability due to insecure loading of DLLs. A malicious actor with non-administrative privileges may exploit this vulnerability to elevate privileges to administrator level on the Windows operating system having VMware ThinApp installed on it.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.56%

42.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-427

Affected Software

Vendor	Product	Versions
Vmware	Thinapp	>= 5.2, < 5.2.10

References

http://packetstormsecurity.com/files/163521/VMware-ThinApp-DLL-Hijacking.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Jul/35Exploit, Mailing List, Technical Description, Third Party Advisory
https://www.vmware.com/security/advisories/VMSA-2021-0015.htmlPatch, Vendor Advisory
http://packetstormsecurity.com/files/163521/VMware-ThinApp-DLL-Hijacking.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Jul/35Exploit, Mailing List, Technical Description, Third Party Advisory
https://www.vmware.com/security/advisories/VMSA-2021-0015.htmlPatch, Vendor Advisory

Timeline

Published: Jul 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22000?

How severe is CVE-2021-22000?

CVE-2021-22000 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22000?

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-2021-22000?

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

Scan your code now

Source: NVD / NIST