CVE-2021-24109Network attack vector

Privilege escalation via undisclosed mechanism

Published Feb 25, 2021 · Updated Aug 3, 2024

Privilege escalation in Microsoft Azure Kubernetes Service allows remote authenticated users to gain elevated privileges via unspecified vectors. Microsoft has not published the affected component, code locus, or faulty operation that processes attacker-controlled input. Exploitation requires high privileges and user interaction; successful exploitation grants confidentiality, integrity, and availability impact.

CVSS severity6.8
Medium
EPSS probability2.17%
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 allows remote authenticated users to gain elevated privileges via unspecified vectors. Microsoft has not published the affected component, code locus, or faulty operation that processes attacker-controlled input. Exploitation requires high privileges and user interaction; successful exploitation grants confidentiality, integrity, and availability impact.

The record

CVE
CVE-2021-24109
Published
Feb 25, 2021
Updated
Aug 3, 2024
Vendor
Microsoft
Product
Azure Kubernetes Service
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=N/A

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Azure Kubernetes Serviceversion=N/A

Published CVSS scores

6.8Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
6.0NIST National Vulnerability DatabaseAV:N/AC:M/Au:S/C:P/I:P/A:P
6.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

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

No sourced classifications are available.

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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