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Status published
Low
CVE-2021-25740
Holes in EndpointSlice Validation Enable Host Network Hijack
Vulnerability Description
A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Rob Scott
References
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Affected Vendor
Kubernetes
View all reports →Affected Software
Kubernetes
Vulnerable Versions:
0
Timeline
Official Publish:
September 20th, 2021
Last Modified:
June 1st, 2026
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.