Is CVE-2026-19941 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-19941?

CVE-2026-19941 has a CVSS v3 severity of MEDIUM (5.9).

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CVE-2026-19941

Description

An inapplicable NSEC record may be accepted by a `named` resolver as proof that no wildcard exists, which could allow an attacker at the same or an upstream level of the zone name to mask the existence of a victim's wildcard record. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.