CVE-2026-52688: Recursor 5.2.0 to before 5.2.12, 5.3.0 to before 5.3.9, 5.4.0 to before 5.4.4

CVE-2026-52688. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.00176 (percentile 0.06817), scored 22-Oct-2026.

Affected technology

Recursor · 5.2.0 to before 5.2.12, 5.3.0 to before 5.3.9, 5.4.0 to before 5.4.4
PowerDNS

Component: DNSSEC validation
File: validate.cc

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and availability impact as none; integrity impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 24-Oct-2026 15:08 UTC

CWE: CWE-295, CWE-345
CCR priority: 30.0 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · Vendor/CNA
EPSS: 0.00176 · percentile 0.06806 · 2026-10-24
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-24 15:09:16.138216+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-24 15:07:27.951960+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-52688.html