high8.6
CVE-2025-40776
A `named` caching resolver that is configured to send ECS (EDNS Client Subnet) options may be vulnerable to a cache-poisoning attack.
Impact
A `named` caching resolver that is configured to send ECS (EDNS Client Subnet) options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1.
Affected products
| Product | Affected versions |
|---|---|
| BIND 9 Versions 9.11.3-S1 | through 9.16.50-S1 |
| 9.18.11-S1 | through 9.18.37-S1 |
| And 9.20.9-S1 | through 9.20.10-S1. |
Versions were read from the advisory text. No structured product data has been published for this record yet.