Buffer overflow in Qt
CVE-2025-3512
There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow. This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (13.4th percentile) — read the EPSS interpretation.
Affected products
- Qt — versions 0, 6.6.0, 6.8.0
- The Qt Company — versions 0, 6.6.0, 6.8.0