CVE-2026-52690

MediumCVSS 5.9/10Last modified Oct 25, 2026

Description

Spoofing replies to Recursor might mark an IP of an authoritative server as not supporting EDNS, causing valdiation of DNSSEC records served by that server to fail.

Metrics

CVSS 3.1 5.9/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

Affected software

VendorProductVersions
PowerDNSRecursor>= 5.2.0, < 5.2.11; >= 5.3.0, < 5.3.8; >= 5.4.0, < 5.4.3

References

Timeline

Published
Jun 25, 2026
Last modified
Oct 25, 2026
NVD status
Deferred

Related CVEs from 2026

CVE-2026-52690: Medium severity, CVSS 5.9 | Vulnix