How severe is CVE-2025-30163?

CVE-2025-30163 has a CVSS 3.x base score of 3.4, rated low severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-30163 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-30163?

CVE-2025-30163 affects Cilium. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-30163?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-30163 have an EU (EUVD) identifier?

Yes. CVE-2025-30163 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8006.

When was CVE-2025-30163 published?

CVE-2025-30163 was published on 2025-03-24 and last updated on 2026-06-17.

CVE-2025-30163

CVE-2025-30163 is a low-severity vulnerability in Cilium with a CVSS 3.x base score of 3.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Low (CVSS 3.x base score 3.4)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-8006
Weakness: CWE-863
Affected product: Cilium
Published: 2025-03-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-30163?: 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.
How severe is CVE-2025-30163?: CVE-2025-30163 has a CVSS 3.x base score of 3.4, rated low severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-30163 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-30163?: CVE-2025-30163 affects Cilium. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-30163?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-30163 have an EU (EUVD) identifier?: Yes. CVE-2025-30163 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8006.
When was CVE-2025-30163 published?: CVE-2025-30163 was published on 2025-03-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*

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