CVE

CVE-2021-36754

7.5

CVSS

Description

PowerDNS Authoritative Server 4.5.0 before 4.5.1 allows anybody to crash the process by sending a specific query (QTYPE 65535) that causes an out-of-bounds exception.

Attack Vector

Privileges Req.

User Interaction

Updated Oct 24, 2026View on NVD →

S4E scanner

highProduct Based Network Vulnerabilities~10 seconds

CVE-2021-36754 Scanner

Targets the QTYPE 65535 query handling in PowerDNS Authoritative Server, allowing an attacker to crash the server remotely.

Used 2.5k times · 3.4k assets checked · domain, subdomain, ipv4

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