Medium 5.5Published Nov 29, 2025

CVE-2025-64715Cilium is a networking, observability, and security solution with an eBPF-based dataplane.

Updated under an hour ago (2026-10-19 09:50 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for cilium

Exploited in the last 30 days

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: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

cilium cilium cilium:cilium	before 1.16.17; from 1.17.0 before 1.17.10; from 1.18.0 before 1.18.4	NVD

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-rqvmpatch, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.