What is the CVSS score of CVE-2025-30163?

CVE-2025-30163 has a CVSS 3.1 base score of 3.4 (Low). CVSS vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Cilium are affected by CVE-2025-30163?

CVE-2025-30163 is a low-severity vulnerability in Cilium (CVSS 3.4). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation.. A patch is available.

How to fix or mitigate CVE-2025-30163?

During next maintenance window: Apply vendor patches when convenient. Vendor patch is available.

Cilium CVE-2025-30163

LOW

Incorrect Authorization (CWE-863)

2025-03-24 security-advisories@github.com

Authentication Bypass Cilium

3.4

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

3.4 LOW

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

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

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:33 vuln.today

Patch released

Mar 28, 2026 - 18:33 nvd

Patch available

CVE Published

Mar 24, 2025 - 19:15 nvd

LOW 3.4

DescriptionGitHub Advisory

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.

AnalysisAI

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated low severity (CVSS 3.4), this vulnerability is no authentication required. This Incorrect Authorization vulnerability could allow attackers to bypass authorization checks to access restricted resources.

Technical ContextAI

This vulnerability is classified as Incorrect Authorization (CWE-863), which allows attackers to bypass authorization checks to access restricted resources. 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. Affected products include: Cilium.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Review and test authorization logic, implement consistent access control checks, use centralized authorization framework.

CVE-2025-30163 vulnerability details – vuln.today

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Cilium CVE-2025-30163

Severity by source

CVSS VectorGitHub Advisory

Lifecycle Timeline

DescriptionGitHub Advisory

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code