CVE-2024-25631

Adjacent traffic disclosure via incorrect EncryptKey inheritance

Published Feb 20, 2024 · Updated Aug 26, 2024

Information disclosure in Cilium 1.14.0 through 1.14.6 allows adjacent attackers to read pod traffic sent outside WireGuard tunnels. In kvstore mode, health and ingress IPCache entries inherit the node resource's EncryptKey; a zero value suppresses WireGuard encryption for those endpoint addresses. Exposure requires external-kvstore and WireGuard configurations plus access to observe affected inter-node traffic; integrity and availability are unaffected.

CVSS severity6.1
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Cilium 1.14.0 through 1.14.6 allows adjacent attackers to read pod traffic sent outside WireGuard tunnels. In kvstore mode, health and ingress IPCache entries inherit the node resource's EncryptKey; a zero value suppresses WireGuard encryption for those endpoint addresses. Exposure requires external-kvstore and WireGuard configurations plus access to observe affected inter-node traffic; integrity and availability are unaffected.

The record

CVE
CVE-2024-25631
Published
Feb 20, 2024
Updated
Aug 26, 2024
Vendor
Cilium
Product
Cilium
Classifications
CWE-311, CWE-319, T1040
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.14.7
  2. Affected versionversion=< 1.14.7

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Cilium · Ciliumversion=0 <1.14.7; version=< 1.14.7

Published CVSS scores

6.1GitHub, Inc.CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
5.3NISTCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-311Missing Encryption of Sensitive Data
CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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