CVE-2026-123571 | hickory-dns Hickory DNS up to 0.26.1 TSIG RDATA Decoding integer underflow

November 8, 2026 Yanac

A vulnerability labeled as problematic has been found in hickory-dns Hickory DNS up to 0.26.1. This issue affects some unknown processing of the component TSIG RDATA Decoding. Such manipulation leads to integer underflow.

This vulnerability is uniquely identified as CVE-2026-123571. The attack can be launched remotely. No exploit exists.

The affected component should be upgraded.VulDB Recent EntriesRead More