CVE-2023-20892

Name: CVE-2023-20892
Creator: NVD / NIST
Published: 2023-06-22T12:15:09.87+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.85%

Last modified Jun 17, 2026

CVE-2023-20892 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The vCenter Server contains a heap overflow vulnerability due to the usage of uninitialized memory in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may exploit heap-overflow vulnerability to execute arbitrary code on the underlying operating system that hosts vCenter Server.. EPSS estimates a 1.85% chance of exploitation in the next 30 days.

Description

The vCenter Server contains a heap overflow vulnerability due to the usage of uninitialized memory in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may exploit heap-overflow vulnerability to execute arbitrary code on the underlying operating system that hosts vCenter Server.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.85%

76.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Vmware	Vcenter Server	< 7.0
Vmware	Vcenter Server	7.0
Vmware	Vcenter Server	8.0

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1801
https://www.vmware.com/security/advisories/VMSA-2023-0014.htmlPatch, Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1801
https://www.vmware.com/security/advisories/VMSA-2023-0014.htmlPatch, Vendor Advisory

Timeline

Published: Jun 22, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-20892?

How severe is CVE-2023-20892?

CVE-2023-20892 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.85% probability of exploitation in the next 30 days.

How do I fix CVE-2023-20892?

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-2023-20892?

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

Scan your code now

Source: NVD / NIST