How severe is CVE-2021-22000?

CVE-2021-22000 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22000 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22000?

CVE-2021-22000 affects Vmware Thinapp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22000?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-22000 published?

CVE-2021-22000 was published on 2021-07-13 and last updated on 2026-06-17.

CVE-2021-22000

CVE-2021-22000 is a high-severity vulnerability in Vmware Thinapp with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-427.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.9
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-427
Affected product: Vmware Thinapp
Published: 2021-07-13
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-22000?: 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.
How severe is CVE-2021-22000?: CVE-2021-22000 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22000 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22000?: CVE-2021-22000 affects Vmware Thinapp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22000?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-22000 published?: CVE-2021-22000 was published on 2021-07-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vmware:thinapp:*:*:*:*:*:*:*:*

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