VulnerabilityModified
CVE-2021-25740
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.
LOW 3.1EPSS 1.95%
Does this matter?
Lower severity and a low EPSS score (1.95%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 3.1 LOWCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 1.95% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-441, CWE-610
- Affected
- kubernetes/kubernetes
- Source
- jordan@liggitt.net
References
- https://github.com/kubernetes/kubernetes/issues/103675Mitigation, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLEMailing List, Mitigation, Third Party Advisory
- https://kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cves/
- https://security.netapp.com/advisory/ntap-20211014-0001/Third Party Advisory
- https://github.com/kubernetes/kubernetes/issues/103675Mitigation, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLEMailing List, Mitigation, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211014-0001/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.