Is Qt 5.9.9 patched?
Summary iPlain-English security status for Qt 5.9.9, built from its CVEs, active-exploitation data, end-of-life date and latest release.
Qt 5.9.9 is part of the 5.9 release line. No known vulnerabilities affect it in our data. The 5.9 line reached end-of-life on 2020-05-31, so it no longer receives security patches. The latest supported Qt release is 6.11.1.
Known issues affecting 5.9.9
None found for this version. ✓
Other Qt versions
Check another release line of Qt.
Frequently asked
Is Qt 5.9.9 patched?
Qt 5.9.9 is end-of-life and no longer receives security patches. Move to 6.11.1.
When does Qt 5.9 reach end-of-life?
Qt 5.9 reached end-of-life on 2020-05-31 and no longer receives security patches.
What is the latest version of Qt?
The latest supported Qt release is 6.11.1.
Is Qt 5.9.9 still receiving security updates?
No — Qt 5.9.9 is on the 5.9 line, which reached end-of-life on 2020-05-31 and no longer receives security updates. Upgrade to 6.11.1 or later to stay supported.
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against The Qt Company's official advisory before you patch or upgrade — Qt official site ↗