Is CVE-2023-3893 in the CISA KEV catalog?

No. CVE-2023-3893 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-3893?

CVE-2023-3893 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2023-3893?

CVE-2023-3893 has an EPSS score of 2.86% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-3893?

Upgrade kubernetes on debian 11 to 1.20.5+really1.20.2-1 or later.

CVE & CISA-KEV Catalog

CVE-2023-3893

HIGHEPSS 85th pctl

8.8

CVSS v3

NVD

Description

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes running kubernetes-csi-proxy may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes running kubernetes-csi-proxy.

CWE-20Improper Input Validation

How to fix

Remediation Available

kubernetesDebian

Fixed in:1.20.5+really1.20.2-1CVE-2023-3893

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.86%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Vendor Advisory1

github.com

Third-Party Advisory1

security.netapp.com

Mailing List1

groups.google.com

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

Embed a live status badge for CVE-2023-3893

Markdown

[![CVE-2023-3893](https://tridentstack.com/cve/badge/CVE-2023-3893.svg)](https://tridentstack.com/cve/CVE-2023-3893)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-3893"><img src="https://tridentstack.com/cve/badge/CVE-2023-3893.svg" alt="CVE-2023-3893"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-08-01.