---
cve: "CVE-2026-52690"
severity: "MEDIUM"
cvss: 5.9
epss: "34%"
vendor: "PowerDNS"
kev: false
exploited: false
published: "2026-06-25 14:16:45"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T22:41:32+02:00"
---

# CVE-2026-52690

> 5.9 MEDIUM

## Beschreibung

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.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 8565b266486a2c347f57985dc7dd704e41c7e1cf (Commit)
- b2f7567b5e2ba8d13ea0bf5c8ecd47ee2db14330 (Commit)

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-52690) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_