CVE-2021-25736

Windows kube-proxy LoadBalancer contention

Medium · published October 30, 2023

CVSS v3.1
5.8
EPSS
1%
Percentile
59.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00915 · 59.8th percentile
Published
2023-10-30T02:19Z
EPSS history
Timeline
  • 30 OCT 02:19Z
    Windows kube-proxy LoadBalancer contention
    cvelistv5