Vulnerability Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.16.17, 1.17.10, and 1.18.4, CiliumNetworkPolicys which use egress.toGroups.aws.securityGroupsIds to reference AWS security group IDs that do not exist or are not attached to any network interface may unintentionally allow broader outbound access than intended by the policy authors. In such cases, the toCIDRset section of the derived policy is not generated, which means outbound traffic may be permitted to more destinations than originally intended. This issue has been patched in versions 1.16.17, 1.17.10, and 1.18.4. There are no workarounds for this issue.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cilium | Cilium | < 1.16.17 |
Related Weaknesses (CWE)
References
- https://github.com/cilium/cilium/commit/a385856b59c8289cc7273fa3a3062bbf0ef96c97Patch
- https://github.com/cilium/cilium/releases/tag/v1.16.17Release Notes
- https://github.com/cilium/cilium/releases/tag/v1.17.10Release Notes
- https://github.com/cilium/cilium/releases/tag/v1.18.4Release Notes
- https://github.com/cilium/cilium/security/advisories/GHSA-38pp-6gcp-rqvmPatchVendor Advisory
FAQ
What is CVE-2025-64715?
CVE-2025-64715 is a vulnerability with a CVSS score of 4.0 (MEDIUM). Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.16.17, 1.17.10, and 1.18.4, CiliumNetworkPolicys which use egress.toGroups.aws.securityGr...
How severe is CVE-2025-64715?
CVE-2025-64715 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-64715?
Check the references section above for vendor advisories and patch information. Affected products include: Cilium Cilium.