CVE-2025-59024 Crafted delegations or IP fragments can poison cached delegations in Recursor
Medium 6.5
Published
Updated
Check this codebase for CVE-2025-59024 and fix it if it is affected.
What it is: CVE-2025-59024 is a medium-severity vulnerability in Powerdns Recursor, published on 9 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-59024 in the wild and no public exploit code.
Affected product: Powerdns Recursor. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2025-59024/ (Markdown: https://insights.sbomify.com/CVE-2025-59024/index.md)
Attackers can poison cached delegations in PowerDNS Recursor using crafted delegations or IP fragments, affecting DNS resolution integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-59024?
CVE-2025-59024 is a medium-severity vulnerability in Powerdns Recursor, published on 9 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Crafted delegations or IP fragments can poison cached delegations in Recursor.
Weakness: CWE-345
Which versions are affected by CVE-2025-59024?
It affects 1 product.
Products include Powerdns Recursor.
How do I fix CVE-2025-59024?
Apply the vendor's patch.
Is CVE-2025-59024 being exploited?
There is no known exploitation of CVE-2025-59024 in the wild and no public exploit code.
Other vulnerabilities in Powerdns Recursor
- CVE-2009-4009 Memory corruption in n/a
- CVE-2020-10030 Memory corruption in n/a
- CVE-2025-59023 Crafted delegations or IP fragments can poison cached delegations in Recursor
- CVE-2025-59030 Insufficient validation of incoming notifies over TCP can lead to a denial of service in Recursor
- CVE-2023-22617 Denial of service in n/a
Sources
Also known as DEBIAN-CVE-2025-59024, GHSA-889r-wfhc-6g6c, UBUNTU-CVE-2025-59024.