CVE-2025-40776
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Birthday Attack against Resolvers supporting ECS
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
BIND 9
- Vendor
- ISC
- Product
- BIND 9
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 9.11.3-S1 | affected | custom | Unavailable | 9.16.50-S1 | None listed |
| 9.18.11-S1 | affected | custom | Unavailable | 9.18.37-S1 | None listed |
| 9.20.9-S1 | affected | custom | Unavailable | 9.20.10-S1 | None listed |
| 9.0.0 | unaffected | custom | Unavailable | 9.20.10 | None listed |