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CVE-2023-3955

23
FAUCET Score

CVE-2023-3955 is a high-severity privilege escalation vulnerability (CVSS 8.8) affecting Kubernetes clusters with Windows nodes. An authenticated user with pod creation privileges on Windows nodes can escalate to administrative access on those nodes. While no public exploits or active exploitation have been confirmed, the vulnerability has garnered significant community discussion and media coverage, indicating heightened awareness.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.24.17CPE matchmatch criteria
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
>= 1.25.0, < 1.25.13CPE matchmatch criteria
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
>= 1.26.0, < 1.26.8CPE matchmatch criteria
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
>= 1.27.0, < 1.27.5CPE matchmatch criteria
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
>= 1.28.0, < 1.28.1CPE matchmatch criteria
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.39%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0339 is in the 86th percentile among its peer group of 17,844 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

check_pointpatch availablevia llm_extracted
View patch
chromepatch availablevia llm_extracted
View patch
github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: k8s.io/kubernetesFixed in: 1.26.8
gopatch availablevia ghsa
Product: k8s.io/kubernetesFixed in: 1.25.13
gopatch availablevia ghsa
Product: k8s.io/kubernetesFixed in: 1.24.17
gopatch availablevia ghsa
Product: k8s.io/kubernetesFixed in: 1.28.1
gopatch availablevia ghsa
Product: k8s.io/kubernetesFixed in: 1.27.5
infiniflowpatch availablevia llm_extracted
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.13Fixed in: openshift4-wincw/windows-machine-config-rhel9-operator:8.0.2-9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.14Fixed in: openshift4-wincw/windows-machine-config-rhel9-operator:9.0.0-105
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.12Fixed in: openshift4-wincw/windows-machine-config-rhel8-operator:7.1.1-9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.11Fixed in: openshift4-wincw/windows-machine-config-rhel8-operator:6.0.2-5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.10Fixed in: openshift4-wincw/windows-machine-config-rhel8-operator:5.1.2-3
View patch
vuepatch availablevia llm_extracted
View patch

Vendor Advisories (6)

goGHSA-q78c-gwqw-jcmchigh

Kubernetes privilege escalation vulnerability

Oct 31, 2023
redhatCVE-2023-3955Important

kubernetes: Insufficient input sanitization on Windows nodes leads to privilege escalation

Aug 23, 2023
vuellm-vue-11629da2ae10989d

Insufficient input sanitization on Windows nodes leads to privilege escalation

chromellm-chrome-073294d6c89c65bf

Insufficient input sanitization on Windows nodes leads to privilege escalation

check_pointllm-check_point-61b4a9d3ab0ba0d4

Insufficient input sanitization on Windows nodes leads to privilege escalation

infiniflowllm-infiniflow-be885891dac608c3

Insufficient input sanitization on Windows nodes leads to privilege escalation

References

github.com / kubernetes/kubernetes/issues/119595
ExploitMitigationPatchThird Party Advisory
groups.google.com / g/kubernetes-security-announce/c/JrX4bb7d83E
Technical Description
security.netapp.com / advisory/ntap-20231221-0002