Findings

CVE-2023-34048

VMware vCenter Server Out-of-Bounds Write Vulnerability

Published Oct 25, 2023 · updated Jun 16, 2026 · vmware vcenter server

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.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 25, 2023 · Catalog

    Detected

    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.

  2. Jan 22, 2024 · CISA KEV

    Known exploited

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

  3. Feb 12, 2024 · CISA KEV

    Remediation due

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

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Required action

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

CISA due date Feb 12, 2024

Affected

  • cpe vmware/vcenter serverversion unspecified
  • cpe vmware/vcenter server7.0
  • vendor VMware vCenter Serverversion unspecified

Sources

  • CISA KEVCVE-2023-34048

    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.

    cisa.gov
  • CVE.orgCVE-2023-34048

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2023-34048

    30-day exploitation probability 99.4%

    first.org
  • NIST NVDCVE-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.

    nvd.nist.gov

References

CVE-2023-34048 · ZeroDay Findings