CVE-2026-33609

Name: CVE-2026-33609
Creator: NVD / NIST
Published: 2026-04-22T14:16:54.77+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2026-33609 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Incomplete escaping of LDAP queries when running with 8bit-dns enabled allows users to perform queries of internal domain subtrees.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

Incomplete escaping of LDAP queries when running with 8bit-dns enabled allows users to perform queries of internal domain subtrees.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.24%

15.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-90

Affected Software

Vendor	Product	Versions
Powerdns	Authoritative	>= 4.9.0, < 4.9.14
Powerdns	Authoritative	>= 5.0.0, < 5.0.4

References

https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-05.htmlBroken Link, Vendor Advisory

Timeline

Published: Apr 22, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-33609?

Incomplete escaping of LDAP queries when running with 8bit-dns enabled allows users to perform queries of internal domain subtrees.

How severe is CVE-2026-33609?

CVE-2026-33609 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-33609?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-33609?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST