CVE-2025-64715
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.
How to fix
- cilium cilium1.16.17, 1.17.10, 1.18.4 or later
- github.com/cilium/cilium1.18.4, 1.17.10, 1.16.17 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cilium cilium | v < 1.16.17, 1.17.0 ≤ v < 1.17.10, 1.18.0 ≤ v < 1.18.4 | 1.16.17, 1.17.10, 1.18.4 |
| github.com/cilium/ciliumGo | 1.18.0 ≤ v < 1.18.4, 1.17.0 ≤ v < 1.17.10, v < 1.16.17 | 1.18.4, 1.17.10, 1.16.17 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.