CVE-2025-32793
Last modified
CVE-2025-32793 is a medium-severity vulnerability rated 4/10 on the CVSS scale. 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. EPSS estimates a 0.12% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cilium | Cilium | >= 1.13.0, < 1.15.16 |
| Cilium | Cilium | >= 1.16.0, < 1.16.9 |
| Cilium | Cilium | >= 1.17.0, < 1.17.3 |
References
- https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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