CVE-2026-42387 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
OX	CNA	5.9 MEDIUM	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 31.36%

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
powerdns	recursor	5.2.0 ≤ 𝑥 < 5.2.11	CNA
powerdns	recursor	5.3.0 ≤ 𝑥 < 5.3.8	CNA
powerdns	recursor	5.4.0 ≤ 𝑥 < 5.4.3	CNA

Debian Releases

Debian Product

Codename

pdns-recursor

bookworm	vulnerable
bookworm (security)	vulnerable
bullseye	vulnerable
forky	5.4.4-1 fixed
sid	5.4.5-1 fixed
trixie	5.2.11-0+deb13u1 fixed
trixie (security)	5.2.13-0+deb13u1 fixed

Ubuntu Releases

Ubuntu Product

Codename

pdns-recursor

bionic	needs-triage
focal	needs-triage
jammy	needs-triage
noble	needs-triage
questing	ignored
resolute	needs-triage

Common Weakness Enumeration

CWE-20 - Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Vulnerability Media Exposure

[GERMAN] PowerDNS: Mehrere Schwachstellen
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in PowerDNS ausnutzen, um Denial-of-Service-Zustände herbeizuführen, DNS-Caches zu manipulieren, Sicherheitsprüfungen zu umgehen, vertrauliche Informationen offenzulegen, DNSSEC-Validierungen zu beeinträchtigen oder die Integrität und Verfügbarkeit der DNS-Auflösung zu beeinflussen.
Published: 2026-06-25T22:00:00+00:00

References

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-08.html