CVE-2026-5946

Summary of CVE-2026-5946 (CVE entry for named in BIND) : The issue involves the DNS message handling in the BIND 9 recursive resolver (named) when processing DNS classes other than IN (e.g., CHAOS/HESIOD) or non-IN data in questions. According to the sources, specially crafted requests reaching c...

CVE-2026-3039

CVE-2026-3039 affects BIND 9.x when TKEY-based authentication via GSS-API tokens is used; the issue is a memory-exhaustion vulnerability triggered by malicious packets in Active Directory/Kerberos DNS setups. Affected versions span 9.0.0–9.16.50, 9.18.0–9.18.48, 9.20.0–9.20.22, 9.21.0–9.21.21, pl...

CVE-2026-1519

Impact: BIND 9 DNSSEC resolvers may consume excessive CPU when validating DNSSEC in a malicious zone. Affected product: BIND 9 series (versions 9.11.0–9.16.50, 9.18.0–9.18.46, 9.20.0–9.20.20, 9.21.0–9.21.19, plus 9.11.3-S1–9.16.50-S1, 9.18.11-S1–9.18.46-S1, and 9.20.9-S1–9.20.20-S1). Root cause: ...

CVE-2026-3592

CVE-2026-3592 affects BIND resolvers. A specially crafted zone can cause amplified resource consumption, impacting availability (LOW) for various BIND 9 branches (9.11.0–9.16.50, 9.18.0–9.18.48, 9.20.0–9.20.22, 9.21.0–9.21.21, plus S1 variants). Public details confirm the vulnerability and affect...

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...

CVE-2026-5947

CVE-2026-5947 describes an undefined behavior due to a race condition in SIG(0) validation during DNS message processing under load. Affected are BIND 9.20.0–9.20.22, 9.21.0–9.21.21, and 9.20.9-S1–9.20.22-S1; versions 9.18.28–9.18.49 and 9.18.28-S1–9.18.49-S1 are not affected. Under a query flood...

CVE-2026-3591

CVE-2026-3591 - Summary A stack use-after-return vulnerability exists in the BIND 9 named server’s SIG(0) handling. A specially crafted DNS request can cause the ACL to mis-match an IP address, potentially bypassing access controls in default-allow ACLs (where all non-denied IPs are allowed). The...

CVE-2026-3104

CVE-2026-3104 describes a memory leak in BIND resolver code during DNSSEC non-existence proof preparation caused by processing a specially crafted domain. Affected: BIND 9.20.0–9.20.20, 9.21.0–9.21.19, and 9.20.9-S1–9.20.20-S1. Not affected: 9.18.x series. Impact: memory growth potentially leadin...

CVE-2026-3119

CVE-2026-3119 affects ISC BIND 9: when processing a correctly signed query containing a TSIG-signed TKEY, named may crash (terminate unexpectedly). Affected versions: 9.20.0–9.20.20, 9.21.0–9.21.19, and 9.20.9-S1–9.20.20-S1. Unaffected: 9.18.0–9.18.46 and 9.18.11-S1–9.18.46-S1. The issue requires...