CVE-2019-13951: Gdnsd

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

The set_ipv4() function in zscan_rfc1035.rl in gdnsd 3.x before 3.2.1 has a stack-based buffer overflow via a long and malformed IPv4 address in zone data.

Affected products

• Gdnsd Gdnsd: version 3.2.0 only

Published 2019-07-18. Last modified 2026-06-17.