CVE-2025-32793
April 21, 2025
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.15.0 to 1.15.15, 1.16.0 to 1.16.8, and 1.17.0 to 1.17.2, are vulnerable when using Wireguard transparent encryption in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium. This issue has been patched in versions 1.15.16, 1.16.9, and 1.17.3. There are no workarounds available for this issue.
Affected Packages
https://github.com/cilium/cilium.git (GITHUB):
Affected version(s) >=v1.17.0 <v1.17.3Fix Suggestion:
Update to version v1.17.3https://github.com/cilium/cilium.git (GITHUB):
Affected version(s) >=v1.13.0 <v1.15.16Fix Suggestion:
Update to version v1.15.16https://github.com/cilium/cilium.git (GITHUB):
Affected version(s) >=v1.16.0 <v1.16.9Fix Suggestion:
Update to version v1.16.9github.com/cilium/cilium (GO):
Affected version(s) >=v1.13.0 <v1.15.16Fix Suggestion:
Update to version v1.15.16github.com/cilium/cilium (GO):
Affected version(s) >=v1.17.0 <v1.17.3Fix Suggestion:
Update to version v1.17.3github.com/cilium/cilium (GO):
Affected version(s) >=v1.16.0 <v1.16.9Fix Suggestion:
Update to version v1.16.9Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.03
