CVE-2021-25216

CVE-2021-25216 affects BIND: in 64-bit builds it can trigger a buffer over-read, and in 32-bit builds a buffer overflow with potential remote code execution, when GSS-TSIG is enabled. The ISC SPNEGO implementation is being removed from the April releases of BIND 9.11 and 9.16 (and 9.17 already dr...

CVE-2026-3593

A use-after-free vulnerability exists in BIND 9’s DNS-over-HTTPS implementation. Affected: BIND 9.20.0–9.20.22, 9.21.0–9.21.21, and 9.20.9-S1–9.20.22-S1. Not affected: 9.18.0–9.18.48 and 9.18.11-S1–9.18.48-S1. Impact: memory corruption with potential denial of service or code execution (per Red H...