CVEvulnerability

CVE-2025-64715

5.5 MEDIUM Published 2025-11-29 Modified 2026-10-19 Official page ↗
Status
Analyzed
Published
2025-11-29
Last modified
2026-10-19
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.0 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-284

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.

Affected configurations

• cilium cilium (< 1.16.17) • cilium cilium (>= 1.17.0 < 1.17.10) • cilium cilium (>= 1.18.0 < 1.18.4)

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References