CVE-2023-27390: Diagon Project Diagon

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

A heap-based buffer overflow vulnerability exists in the Sequence::DrawText functionality of Diagon v1.0.139. A specially crafted markdown file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger this vulnerability.

Affected products

• Diagon Project Diagon: version 1.0.139 only

Published 2023-07-05. Last modified 2026-06-17.