When loading a specifically crafted ICNS format image file in QImage then it will trigger a crash. This issue affects Qt from versions 6.3.0 through 6.5.9, from 6.6.0 through 6.8.4, 6.9.0. This is fixed in 6.5.10, 6.8.5 and 6.9.1.
CVE ID: CVE-2025-5683
CVSS Base Severity: MEDIUM
CVSS Base Score: 5.1
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L
Vendor: The Qt Company
Product: Qt
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 12.34% (scored less or equal to compared to others)
EPSS Date: 2025-06-05 (when was this score calculated)