CVE-2026-33599
Out-of-bounds read in service discovery
- State
- Published
- Severity
- 3.1 Low
- Published
- Apr 22, 2026
- Updated
- Apr 22, 2026
- Reserved
- Mar 23, 2026
Description
A rogue backend can send a crafted SVCB response to a Discovery of Designated Resolvers request, when requested via either the autoUpgrade (Lua) option to newServer or auto_upgrade (YAML) settings. DDR upgrade is not enabled by default.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.1 Low | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L | OX |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
DNSdistPowerDNS |
|
References
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