CVE-2020-24698: Powerdns Authoritative

Critical severity, CVSS 9.8. EPSS: 3.2% chance of exploitation in the next 30 days.

An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker might be able to cause a double-free, leading to a crash or possibly arbitrary code execution. by sending crafted queries with a GSS-TSIG signature.

Affected products

• Powerdns Authoritative: up to and including 4.3.0

Published 2020-10-02. Last modified 2026-06-17.