Debian/unbound: unknown
A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet (ECS). Unbound is also vulnerable when compiled with ECS
Action: Upgrade unbound to 1.22.0-2 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.22.0-2 | - |
Fixed versions
| 1.22.0-2 |
Sources
- osv: DEBIAN-CVE-2025-5994#Debian:13/unbound
- https://security-tracker.debian.org/tracker/CVE-2025-5994
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