CVE-2023-29332Network attack vector

Cluster Administrator access

Published Sep 12, 2023 · Updated Oct 30, 2025

Privilege escalation in Microsoft Azure Kubernetes Service before VHD 202308 allows remote attackers to gain Cluster Administrator privileges. Microsoft identifies insufficiently random values but has not disclosed the affected component, generated value, or operation that exposes it. Exploitation requires network access but no authentication or user interaction and grants cluster-wide administrative control.

CVSS severity7.5
High
EPSS probability2.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Microsoft Azure Kubernetes Service before VHD 202308 allows remote attackers to gain Cluster Administrator privileges. Microsoft identifies insufficiently random values but has not disclosed the affected component, generated value, or operation that exposes it. Exploitation requires network access but no authentication or user interaction and grants cluster-wide administrative control.

The record

CVE
CVE-2023-29332
Published
Sep 12, 2023
Updated
Oct 30, 2025
Vendor
Microsoft
Product
Azure Kubernetes Service
Classifications
CWE-20, CWE-330, T1068
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1.0 <VHD 202308

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Azure Kubernetes Serviceversion=1.0 <VHD 202308

Published CVSS scores

9.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-330Use of Insufficiently Random Values
T1068Exploitation for Privilege Escalation

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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