CVE-2026-33602
Medium
Description
A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service.
SeverityMedium
CVSS6.5
Exploit probability—
ProductPowerdns Dnsdist
PublishedApr 22, 2026
First seenApr 22, 2026
Weakness typeCWE-122CWE-122
How to fix
Update
- powerdns dnsdist1.9.13, 2.0.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| powerdns dnsdist | 1.9.0 ≤ v < 1.9.13, 2.0.0 ≤ v < 2.0.4 | 1.9.13, 2.0.4 |
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