CVE-2026-24028: Powerdns Dnsdist

High severity, CVSS 8.2. EPSS: 1% chance of exploitation in the next 30 days.

An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.

Affected products

• Powerdns Dnsdist: from 1.9.0, before 1.9.12 (fixed in 1.9.12); from 2.0.0, before 2.0.3 (fixed in 2.0.3)

Published 2026-03-31. Last modified 2026-07-25.