CVE-2025-3512

Buffer overflow in QTextMarkdownImporter

CVSS 4.8 MEDIUMEPSS 0.2%CWE-122

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.8EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Apr 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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

The Qt Company · Qt

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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