CVE-2023-34048

CRITICALImmediate

Published:Oct 25, 2023(2 years ago)

Modified:Oct 30, 2025

Remote ExploitNo Auth RequiredNo InteractionLow Complexity

Vulnerability Description

vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution.

Attack Characteristics

Network AccessLow ComplexityNo Auth NeededNo User Interaction

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AI analysis not yet available

Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.

No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

Vendor	Product	Versions	Fixed In
vmware	vcenter_server	4.0 - 5.5	-
vmware	vcenter_server	-	-
vmware	vcenter_server	-

Timeline

Published
CVE disclosed publicly
Oct 25, 20232 years ago
Last Modified
Most recent update
Oct 30, 20256 months ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

https://www.vmware.com/security/advisories/VMSA-2023-0023.htmlVendor Advisory
https://www.vicarius.io/vsociety/posts/understanding-cve-2023-34048-a-...Exploit
https://www.vmware.com/security/advisories/VMSA-2023-0023.htmlVendor Advisory

CVSS Score

v3.1

9.8/ 10.0

CRITICAL

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

At a Glance

Affected Products

References

vmware / vcenter_server

CVE-2023-34048

Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

CVE-2023-34048

✦ Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

Vulnerability Description