qt6-base: There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter
CVE-2025-3512 is fixed in qt6-base on 1 platform, first by DEBIAN-CVE-2025-3512, released April 11, 2025. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| qt6-base · Debian 13.5 (trixie) | 6.8.2+dfsg-6 | DEBIAN-CVE-2025-3512 | Apr 11, 2025 |
| qt6-base · Debian 14 | 6.8.2+dfsg-6 | DEBIAN-CVE-2025-3512 | Apr 11, 2025 |
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