CVE-2025-64715 (GCVE-0-2025-64715)

Vulnerability from cvelistv5 – Published: 2025-11-29 00:11 – Updated: 2025-12-01 19:15
VLAI
Title
Cilium with misconfigured toGroups in policies can lead to unrestricted egress traffic
Summary
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.
Severity
4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-01 18:48 UTC
CWE
  • CWE-284 - Improper Access Control
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7760 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
cilium cilium Affected: < 1.16.17
Affected: >= 1.17.0, < 1.17.10
Affected: >= 1.18.0, < 1.18.4
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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}



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