CVE-2025-30163

Name: CVE-2025-30163
Creator: NVD / NIST
Published: 2025-03-24T19:15:52.937+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2025-30163 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies (`fromNodes` and `toNodes`) will incorrectly permit traffic to/from non-node endpoints that share the labels specified in `fromNodes` and `toNodes` sections of network policies. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies (`fromNodes` and `toNodes`) will incorrectly permit traffic to/from non-node endpoints that share the labels specified in `fromNodes` and `toNodes` sections of network policies. Node based network policy is disabled by default in Cilium. This issue affects: Cilium v1.16 between v1.16.0 and v1.16.7 inclusive and v1.17 between v1.17.0 and v1.17.1 inclusive. This issue is fixed in Cilium v1.16.8 and v1.17.2. Users can work around this issue by ensuring that the labels used in `fromNodes` and `toNodes` fields are used exclusively by nodes and not by other endpoints.

Metrics

CVSS 3.1

4.7/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

EPSS Probability

0.20%

9.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Cilium	Cilium	>= 1.16.0, < 1.16.8
Cilium	Cilium	>= 1.17.0, < 1.17.2

References

https://docs.cilium.io/en/stable/security/policy/language/#node-basedProduct
https://github.com/cilium/cilium/pull/36657Patch
https://github.com/cilium/cilium/security/advisories/GHSA-c6pf-2v8j-96mcMitigation, Patch, Third Party Advisory

Timeline

Published: Mar 24, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-30163?

How severe is CVE-2025-30163?

CVE-2025-30163 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2025-30163?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-30163?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST