CVE-2023-33285: Qt

Medium severity, CVSS 5.3. EPSS: 0.8% chance of exploitation in the next 30 days.

An issue was discovered in Qt 5.x before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. QDnsLookup has a buffer over-read via a crafted reply from a DNS server.

Affected products

• Qt Qt: from 5.0.0, before 5.15.4 (fixed in 5.15.4); from 6.0.0, before 6.2.9 (fixed in 6.2.9); from 6.3.0, before 6.5.1 (fixed in 6.5.1)

Published 2023-05-22. Last modified 2026-06-17.