medium5.9
CVE-2026-19941
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 le…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| 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. |
Versions were read from the advisory text. No structured product data has been published for this record yet.