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Vulnerabilities

Security fix · CVE-2025-32793

Cilium is a networking, observability, and security solution with an eBPF-based dataplane.

Published Apr 21, 2025 · catalog updated Apr 21, 2025 · Cilium is a networking,

Check if you run it

No confirmed exploitation is on record for CVE-2025-32793. EPSS is 0.14%. Act only if a listed version of Cilium is a networking, is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Cilium is a networking,).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.14%
Remediation
Version ranges on file
Affected products
vendor cilium cilium v1.13.0, < v1.15.16

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor cilium cilium v1.13.0, < v1.15.16v1.13.0, < v1.15.16

How to fix CVE-2025-32793

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-32793. EPSS is 0.14%. Act only if a listed version of Cilium is a networking, is installed.

Which versions are affected?

Compare what you have installed with cilium cilium v1.13.0, < v1.15.16 v1.13.0, < v1.15.16. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.14%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 21, 2025 · EUVD

    Detected

    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. Th

  2. Apr 21, 2025 · EUVD

    Updated

    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. Th

Sources

  • CVE.orgVulnerability recordCVE-2025-32793

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-32793

    30-day exploitation probability 0.1%

    first.org
  • EUVDVulnerability recordEUVD-2025-12230

    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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.