CVE-2025-3512mediumCWE-122

Buffer overflow in QTextMarkdownImporter

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.8epss 0.2%

exploitation probability

0.2%top 87% of all CVEs

observed exploitation

nono source reports it

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.

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

Affected products

Qt · Qt

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