CVE-2025-32793
Medium
Description
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.
SeverityMedium
CVSS4.0
Exploit probability—
ProductCilium
PublishedApr 21, 2025
First seenApr 21, 2025
Weakness typeCWE-319CWE-319
How to fix
Update
- cilium cilium1.15.16, 1.16.9, 1.17.3 or later
- github.com/cilium/cilium1.15.16, 1.16.9, 1.17.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cilium cilium | 1.13.0 ≤ v < 1.15.16, 1.16.0 ≤ v < 1.16.9, 1.17.0 ≤ v < 1.17.3 | 1.15.16, 1.16.9, 1.17.3 |
| github.com/cilium/ciliumGo | 1.13.0 ≤ v < 1.15.16, 1.16.0 ≤ v < 1.16.9, 1.17.0 ≤ v < 1.17.3 | 1.15.16, 1.16.9, 1.17.3 |
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