CVE-2025-3512
Buffer overflow in QTextMarkdownImporter
- State
- Published
- Severity
- 4.8 Medium
- Published
- Apr 11, 2025
- Updated
- Jul 29, 2026
- Reserved
- Apr 11, 2025
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Clear | TQtC |
Weaknesses
- CWE-122 Heap-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
QtQt |
|
References
- https://codereview.qt-project.org/c/qt/qtbase/+/635546
- http://www.openwall.com/lists/oss-security/2025/04/24/4
- http://www.openwall.com/lists/oss-security/2025/04/24/5
- http://www.openwall.com/lists/oss-security/2025/04/24/6
- http://www.openwall.com/lists/oss-security/2025/04/25/1
- http://www.openwall.com/lists/oss-security/2025/04/25/2
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