CVE-2021-25736

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CVSS 3.1

6.3 medium

EPSS

<1%p58

Published

Oct 30, 2023 (Oct 30, 2023)

Modified

Jun 17, 2026

Description

Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (“spec.ports[*].port”) as a LoadBalancer Service when the LoadBalancer controller does not set the “status.loadBalancer.ingress[].ip” field. Clusters where the LoadBalancer controller sets the “status.loadBalancer.ingress[].ip” field are unaffected.

Vendors: kubernetes
Products: kubernetes
Weakness: CWE-114
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.9%)

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