CVE-2025-3512

Impact

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.

Affected products

Versions were read from the advisory text. No structured product data has been published for this record yet.

Weakness classification

References

• NVD record
• CVE.org record
• 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