Buffer overflow in Qt

CVE-2021-38593

Qt 5.x before 5.15.6 and 6.x through 6.1.2 has an out-of-bounds write in QOutlineMapper::convertPath (called from QRasterPaintEngine::fill and QPaintEngineEx::stroke).

Vulnerability class: Buffer Overflow

EPSS: 0.031 (85.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-38593?
CVE-2021-38593 is a high-severity vulnerability in Qt, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2021-08-12.
How severe is CVE-2021-38593?
High severity. CVSS v3 base score is 7.5 out of 10.