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01 Record

CVE-2023-3676

Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation

HighPUBLISHEDCNA: kubernetes
CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

02 Description

Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
13.15% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 96.1% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-10-31 20:22Z2 YR AGO
Last updated
2025-02-27 20:38Z1 YR AGO
Reserved
2023-07-14
Assigning CNA
kubernetes
Record state
PUBLISHED
Severity
High (CVSS 8.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-20Improper Input ValidationClass
  • CWE-269Improper Privilege ManagementClass
Data version
5.1
Document digest
f06a59d26ac032e94179ad633354f8677acccee6dedaea36f87e587eb943c461

05 Affected products

VendorProductVersionsPlatforms
Kuberneteskubeletv1.28.0, v1.27.0 to v1.27.4, v1.26.0 to v1.26.7, v1.25.0 to v1.25.12, 0 to v1.24.16—

06 References

07 Fixed in

Debian 12

  • kubernetes
    Fixed in 1.20.5+really1.20.2-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • kubernetes
    Fixed in 1.20.5+really1.20.2-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • kubernetes
    Fixed in 1.20.5+really1.20.2-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.