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CVE-2023-5528

Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation

7.2 HighFix available

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
High
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

4.09%Up 4.1 points since Nov 15, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.2

Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Record
CVE-2023-5528
CVSS 3.1
7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
EUVDEUVD-2023-2977 7.2

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Record
EUVD-2023-2977
CVSS 3.1
7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-hq6q-c2x6-hmch 8.8

Kubernetes Improper Input Validation vulnerability

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Record
GHSA-hq6q-c2x6-hmch
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
NVD 7.2

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Record
CVE-2023-5528
CVSS 3.1
7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSVAZL-32005 8.8

CVE-2023-5528 affecting package kubernetes for versions less than 1.28.4-1

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Record
AZL-32005
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVAZL-34894 8.8

CVE-2023-5528 affecting package kubernetes for versions less than 1.28.7-2

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Record
AZL-34894
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 4 moreShow less
OSV 7.2

Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Record
CVE-2023-5528
CVSS 3.1
7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSVGHSA-hq6q-c2x6-hmch 8.8

Kubernetes Improper Input Validation vulnerability

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Record
GHSA-hq6q-c2x6-hmch
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSVGO-2023-2341 No score

Kubernetes Improper Input Validation vulnerability in k8s.io/kubernetes

Kubernetes Improper Input Validation vulnerability in k8s.io/kubernetes

Record
GO-2023-2341
Updated
2026-11-02
OSVopenSUSE-SU-2025:15424-1 No score

govulncheck-vulndb-0.0.20250807T150727-1.1 on GA media

These are all security issues fixed in the govulncheck-vulndb-0.0.20250807T150727-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15424-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
k8s.io/kubernetes
Go
 1.28.0 up to 1.28.4
1.28.4
k8s.io/kubernetes
Go
 1.27.0 up to 1.27.8
1.27.8
k8s.io/kubernetes
Go
 1.26.0 up to 1.26.11
1.26.11
k8s.io/kubernetes
Go
 before 1.25.16
1.25.16
kubernetes
Azure Linux:2
 before 1.28.4-1
1.28.4-1
kubernetes
Azure Linux:3
 before 1.28.7-2
1.28.7-2
k8s.io/kubernetes
Go
 before 1.25.16, 1.26.0 up to 1.26.11, 1.27.0 up to 1.27.8, 1.28.0 up to 1.28.4
1.25.161.26.111.27.81.28.4
govulncheck-vulndb
openSUSE:Tumbleweed
From an advisory covering 44 CVEs
 before 0.0.20250807T150727-1.1
0.0.20250807T150727-1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-5528 is a high vulnerability (CVSS 7.2) in Kubernetes, published November 14, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.09%, the 90th percentile. Fixed in k8s.io/kubernetes 1.28.4.

References

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