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01 Record

CVE-2023-3955

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
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • 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
3.99% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 90.1% 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 20:36Z2 YR AGO
Last updated
2025-02-13 17:03Z1 YR AGO
Reserved
2023-07-26
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
1bd1cc87dc30987a91bbcb7b70d2b6795db95e47c4536a9e1c5a2723091ca815

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, 1.28.0, 1.27.0 to 1.27.4, 1.26.0 to 1.26.7, 1.25.0 to 1.25.12, 0 to 1.24.16—

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.