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.
Metrics
Affected Vendors & Products
References
History
Thu, 04 Dec 2025 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | NVD-CWE-noinfo | |
| CPEs | cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:* |
Mon, 01 Dec 2025 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 01 Dec 2025 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Cilium
Cilium cilium |
|
| Vendors & Products |
Cilium
Cilium cilium |
Sat, 29 Nov 2025 00:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Cilium with misconfigured toGroups in policies can lead to unrestricted egress traffic | |
| Weaknesses | CWE-284 | |
| References |
|
|
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-11-29T00:11:26.807Z
Updated: 2025-12-01T19:15:21.156Z
Reserved: 2025-11-10T14:07:42.922Z
Link: CVE-2025-64715
Updated: 2025-12-01T18:49:03.808Z
Status : Analyzed
Published: 2025-11-29T01:16:01.427
Modified: 2025-12-04T20:38:45.300
Link: CVE-2025-64715
No data.