CVE-2026-40012
5.3
MEDIUM
CVSS 3.1
EPSS 0.30%
Description
ECS zero scoped answers are stored in the packet cache while they should not. This impacts only configurations that have ECS enabled;
How to fix CVE-2026-40012
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/pdns-recursor—no fix listed
Is CVE-2026-40012 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |