VDB
CVE-2026-33254
CVE-2026-33254
PUBLISHED
CVSS 5.300000190734863 MEDIUM
An attacker can create a large number of concurrent DoQ or DoH3 connections, causing unlimited memory allocation in DNSdist and leading to a denial of service. DOQ and DoH3 are disabled by default.
EPSS 0.01% · 0.6th percentile
Risk Scores
CVSS v3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score
0.01%
0.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| PowerDNS | DNSdist | 1.9.0, 2.0.0 |
Timeline
- Apr 22, 2026 CVE Published
- Apr 22, 2026 CVE Updated
- Apr 23, 2026 Security Advisory
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score
- May 26, 2026 EPSS Score