CVE-2023-34056Network attack vector

Authenticated access to unauthorized data

Published Oct 25, 2023 · Updated Oct 29, 2024

Information disclosure in VMware vCenter Server 7.0 and 8.0 allows remote authenticated users to access unauthorized data. VMware has not published the affected component or the operation that exposes data to a non-administrative account. The request must reach the network service under valid non-administrative credentials, and the documented consequence is limited to partial data disclosure.

CVSS severity4.3
Medium
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in VMware vCenter Server 7.0 and 8.0 allows remote authenticated users to access unauthorized data. VMware has not published the affected component or the operation that exposes data to a non-administrative account. The request must reach the network service under valid non-administrative credentials, and the documented consequence is limited to partial data disclosure.

The record

CVE
CVE-2023-34056
Published
Oct 25, 2023
Updated
Oct 29, 2024
Vendor
VMware
Product
VMware vCenter Server
Classifications
CWE-922
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 29, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.x
  2. Affected versionversion=5.x
  3. Affected versionversion=7.0 <7.0U3o
  4. Affected versionversion=8.0 <8.0U2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

VMware · VMware vCenter Serverversion=4.x; version=5.x; version=7.0 <7.0U3o; version=8.0 <8.0U2

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3VMwareCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-922Insecure Storage of Sensitive Information

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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