CVE-2026-52686: 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-2026-52686. CVSS 3.1 base score 3.7 (LOW, Vendor/CNA). EPSS 0.00162 (percentile 0.05052), 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: syncres.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 3.7/10) rates confidentiality and availability impact as none; integrity impact as low. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 24-Oct-2026 15:09 UTC

CWE: CWE-347
CCR priority: 14.8 /100 (P5)
CVSS 3.1: 3.7 /10 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N · Vendor/CNA
EPSS: 0.00162 · percentile 0.05046 · 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-2026-52686.html