CVE-2023-34056
Vmware Vcenter Server 4.0 – 5.5
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-34056 is a medium-severity Insecure Storage of Sensitive Information (CWE-922) vulnerability in Vmware Vcenter Server. Its CVSS base score is 4.3 (Medium).
Operationally, ranked in the top 49% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-38170
Vulnerability Data
vCenter Server contains a partial information disclosure vulnerability. A malicious actor with non-administrative privileges to vCenter Server may leverage this issue to access unauthorized data.
- CWE(s)
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Tracking information locations and access supports secure storage practices instead of insecure ones.
Establishing an alternate site with equivalent protections directly mitigates insecure storage of sensitive backup information.
Requiring protection of backup information directly addresses insecure storage of sensitive data in backups.
Policy explicitly addresses insecure storage of CUI on external systems, requiring compliant handling and protections.
Proper categorization drives selection of storage controls that keep sensitive information from being stored insecurely.
The control explicitly requires secure storage mechanisms for sensitive information, closing the insecure-storage weakness class.
Storing information as fragments on distinct components is an architectural control that avoids insecure single-location storage of the complete sensitive data set.
OPSEC requirements improve handling and storage practices for sensitive supply-chain information.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
A.7.14 addresses end-of-life physical destruction, sanitization or label removal on equipment/media already containing data; it does not stop the product from storing sensitive information without limiting unauthorized read/write access in the first place.
Hardening callouts derived
DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.
- No fine-grained STIG row for CWE-922, a class-level weakness. Rules are authored against its narrower children: CWE-312.