All vulnerabilities
CVE-2023-34048

VMware vCenter Server Out-of-Bounds Write Vulnerability

VMware vCenter ServerContainers & cloud
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 22 Jan 2024CISA KEV
Exploit odds (EPSS)99.4%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in8.0U2Also 7.0U3oCVE List
Federal deadline12 Feb 2024Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 25 Oct 2023, 04:21 UTCPublishedCVE List
  2. 22 Jan 2024Added to CISA KEVCISA KEV

Public exploit code and templates 1

  • Scanner templateVMware vCenter Server - Out-of-Bounds WriteNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

VMware vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol that allows an attacker to conduct remote code execution.

Text from CVE List

Affected versions 4

  • VMware vCenter Serveraffected: 8.0 before 8.0U2CVE List
  • VMware vCenter Serveraffected: 7.0 before 7.0U3oCVE List
  • VMware Cloud Foundation (VMware vCenter Server)affected: 5.xCVE List
  • VMware Cloud Foundation (VMware vCenter Server)affected: 4.xCVE List

References 4