CVE-2023-34048

CVE Database · CVE-2023-34048

CVE-2023-34048

· CRITICALAnalyzed

CVSS v3.1

9.8

EPSS

99.21%

Published

Oct 25, 2023

Modified

Oct 30, 2025

CISA Known Exploited Vulnerability

Added: 2024-01-22 · Due: 2024-02-12

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Public PoC / Exploit (2)

All weaponized →

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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.

CVSS Vector

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

Weaknesses (CWE)

CWE-787CWE-787

Affected Products (37)

vmware · vcenter_servervulnerable

References (4)

https://www.vmware.com/security/advisories/VMSA-2023-0023.html

Vendor Advisory

https://www.vicarius.io/vsociety/posts/understanding-cve-2023-34048-a-zero-day-out-of-bound-write-in-vcenter-server

ExploitThird Party Advisory

https://www.vmware.com/security/advisories/VMSA-2023-0023.html

Vendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-34048

US Government Resource

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