CVE-2025-64715

MEDIUM
2025-11-29 [email protected]
4.0
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 19:24 vuln.today
Patch Released
Mar 28, 2026 - 19:24 nvd
Patch available
CVE Published
Nov 29, 2025 - 01:16 nvd
MEDIUM 4.0

Tags

Authentication Bypass Cilium Suse

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.

Analysis

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated medium severity (CVSS 4.0), this vulnerability is no authentication required, low attack complexity.

Technical Context

This vulnerability is classified under CWE-284. 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 products include: Cilium.

Affected Products

Cilium.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

20
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +20
POC: 0

Vendor Status

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CVE-2025-64715 vulnerability details – vuln.today
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