What is the severity of CVE-2021-21976?

CVE-2021-21976 is a critical vulnerability that allows authenticated admin users to perform remote code execution.

What are the affected versions for CVE-2021-21976?

CVE-2021-21976 affects vSphere Replication versions 6.5.x prior to 6.5.1.5, 8.1.x prior to 8.1.2.3, 8.2.x prior to 8.2.1.1, and 8.3.x prior to 8.3.1.2.

How do I fix CVE-2021-21976?

To fix CVE-2021-21976, you should upgrade to the patched versions of vSphere Replication that are specified in the VMware security advisory.

Who can exploit the CVE-2021-21976 vulnerability?

Only authenticated admin users can exploit the CVE-2021-21976 vulnerability to perform remote code execution.

Is there a patch available for CVE-2021-21976?

Yes, a patch is available for CVE-2021-21976 in the updated versions of vSphere Replication.

Vulnerability/
CVE-2021-21976

high

7.2

CWE

78 77

11/2/2021

3/8/2024

CVE-2021-21976: OS Command Injection

First published: Thu Feb 11 2021(Updated: )

vSphere Replication 8.3.x prior to 8.3.1.2, 8.2.x prior to 8.2.1.1, 8.1.x prior to 8.1.2.3 and 6.5.x prior to 6.5.1.5 contain a post-authentication command injection vulnerability which may allow an authenticated admin user to perform a remote code execution.

Credit: security@vmware.com

Affected Software	Affected Version	How to fix
Vmware Vsphere Replication	>=6.5.0<6.5.1.5
Vmware Vsphere Replication	>=8.1.0<8.1.2.3
Vmware Vsphere Replication	>=8.2.0<8.2.1.1
Vmware Vsphere Replication	>=8.3.0<8.3.1.2

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Reference Links

https://www.vmware.com/security/advisories/VMSA-2021-0001.html

Frequently Asked Questions

What is the severity of CVE-2021-21976?
CVE-2021-21976 is a critical vulnerability that allows authenticated admin users to perform remote code execution.
What are the affected versions for CVE-2021-21976?
CVE-2021-21976 affects vSphere Replication versions 6.5.x prior to 6.5.1.5, 8.1.x prior to 8.1.2.3, 8.2.x prior to 8.2.1.1, and 8.3.x prior to 8.3.1.2.
How do I fix CVE-2021-21976?
To fix CVE-2021-21976, you should upgrade to the patched versions of vSphere Replication that are specified in the VMware security advisory.
Who can exploit the CVE-2021-21976 vulnerability?
Only authenticated admin users can exploit the CVE-2021-21976 vulnerability to perform remote code execution.
Is there a patch available for CVE-2021-21976?
Yes, a patch is available for CVE-2021-21976 in the updated versions of vSphere Replication.

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