UpHeron
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Servers and applications

CVE-2023-34048

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.

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 22 Jan 2024.

Severity
Critical 9.8
Published
25 Oct 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
VMware vCenter ServerServers and applications · cpe:a:vmware:vcenter_server
  • Version 8.0-update1
  • Version 8.0
  • Version 8.0-update1c
  • Version 8.0-update1b
All 37 release lines
  • From 4.0 up to 5.5
  • Version 7.0-a
  • Version 7.0-b
  • Version 7.0-c
  • Version 7.0-update1a
  • Version 7.0-update1c
  • Version 7.0-update2a
  • Version 7.0-update2b
  • Version 7.0-update2c
  • Version 7.0-update3a
  • Version 7.0-update3c
  • Version 7.0
  • Version 7.0-d
  • Version 7.0-update1
  • Version 7.0-update1d
  • Version 7.0-update2
  • Version 7.0-update2d
  • Version 7.0-update3
  • Version 7.0-update3d
  • Version 7.0-update3e
  • Version 7.0-update3f
  • Version 7.0-update3g
  • Version 7.0-update3h
  • Version 7.0-update3i
  • Version 7.0-update3j
  • Version 7.0-update3k
  • Version 7.0-update3l
  • Version 7.0-update3m
  • Version 7.0-update3n
  • Version 8.0-a
  • Version 8.0-b
  • Version 8.0-c
  • Version 8.0-update1a
  • Version 8.0-update1b
  • Version 8.0-update1c
  • Version 8.0
  • Version 8.0-update1

Known exploited

CISA name
VMware vCenter Server Out-of-Bounds Write Vulnerability
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due for US agencies
12 Feb 2024
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-34048
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-34048