CVE-2025-32793

Summary

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 Software

VendorProductVersion RangeStatus
ciliumcilium>= v1.13.0, < v1.15.16affected
ciliumcilium>= v1.16.0, < v1.16.9affected
ciliumcilium>= v1.17.0, < v1.17.3affected

Weaknesses

  • CWE-319: CWE-319: Cleartext Transmission of Sensitive Information

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References