CVE-2025-23028: GO-2025-3415 - DoS in Cilium agent DNS proxy from crafted DNS responses in github.com/cilium/cilium

CVE-2025-23028 · Severity: low · CVSS 3.1 · Published 2025-01-28

DoS in Cilium agent DNS proxy from crafted DNS responses in github.com/cilium/cilium

Technologies: github.com/cilium/cilium (Go). Vendors: Go.

Quick answers

Is CVE-2025-23028 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-23028 being exploited in the wild.
How severe is CVE-2025-23028?
Low severity, with a CVSS score of 3.1, published 28 January 2025.
Which products and versions are affected?
github.com/cilium/cilium (Go) SEMVER:introduced=1.14.0,fixed=1.14.18, SEMVER:introduced=1.14.0,fixed=1.14.18,introduced=1.15.0,fixed=1.15.12,introduced=1.16.0,fixed=1.16.5.
Is there a fix for CVE-2025-23028?
Yes. github.com/cilium/cilium (Go): upgrade to 1.14.18, 1.16.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-23028?
Check whether you run github.com/cilium/cilium (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/cilium/cilium (Go): upgrade to 1.14.18, 1.16.5 or later
    go get github.com/cilium/cilium@v1.16.5

Affected products

  • github.com/cilium/cilium (Go) SEMVER:introduced=1.14.0,fixed=1.14.18, SEMVER:introduced=1.14.0,fixed=1.14.18,introduced=1.15.0,fixed=1.15.12,introduced=1.16.0,fixed=1.16.5

Identifiers

  • CVE-2025-23028
  • GHSA-9m5p-c77c-f9j7
  • GO-2025-3415

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