CVE-2023-34048
CVSS v3
9.8
CRITICAL
EPSS Score
99.4 %
exploit probability, as of 2026-10-04
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
CISA Known Exploited Vulnerability
- Date Added
- 2024-01-22
- Patch Due Date
- 2024-02-12
- Ransomware Use
- Unknown
Technical details
- Published
- 2023-10-25
Frequently asked questions
What is 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.
Is CVE-2023-34048 actively exploited?
Yes. CVE-2023-34048 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2024-02-12.
What is the CVSS score for CVE-2023-34048?
CVE-2023-34048 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2023-34048 affecting your environment?
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