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01 Record

CVE-2023-20896

The VMware vCenter Server contains an out-of-bounds read vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an

MediumPUBLISHEDCNA: vmware
CNA base score5.9 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

The VMware vCenter Server contains an out-of-bounds read vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.90% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 59.3% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-06-22 12:00Z3 YR AGO
Last updated
2025-02-13 16:40Z1 YR AGO
Reserved
2022-11-01
Assigning CNA
vmware
Record state
PUBLISHED
Severity
Medium (CVSS 5.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
Data version
5.1
Document digest
4d96dbdcea8c5a27632c168f3e7c39dba122a492ddf8c405060c825303c6c885

05 Affected products

VendorProductVersionsPlatforms
VMwareVMware vCenter Server (vCenter Server)8.0 to < 8.0 U1b, 7.0 to < 7.0 u3mWindows, Linux, Android, x86, ARM, 64 bit, 32 bit, MacOS, iOS
VMwareVMware Cloud Foundation (vCenter Server)5.x to < 7.0 U3m, 8.0 U1b, 4.x to < 7.0 U3m, 8.0 U1bWindows, Linux, Android, 64 bit, 32 bit, ARM, x86, MacOS, iOS

06 References