CVE-2026-40208
Low
Description
An attacker might be able to delay the processing of DoH3 queries by sending DoH3 GET queries with an invalid DATA frame.
SeverityLow
CVSS3.7
Exploit probability—
ProductDNSdist
PublishedJun 25, 2026
First seenJun 25, 2026
Weakness typeCWE-705CWE-705
How to fix
Update
- PowerDNS DNSdist1.9.15, 2.0.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| PowerDNS DNSdist | 1.9.0 ≤ v < 1.9.15, 2.0.0 ≤ v < 2.0.7 | 1.9.15, 2.0.7 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.