CVE-2025-5455 describes a denial-of-service vulnerability in the private API function qDecodeDataUrl() within Qt's QtCore, affecting versions up to 5.15.18, 6.0.0-6.5.8, 6.6.0-6.8.3, and 6.9.0. Malformed data URLs, specifically those with a "charset" parameter lacking a value, can trigger an assertion failure and abort the application if Qt was built with assertions enabled. This vulnerability carries a high CVSS score of 8.4, indicating a significant impact on availability and integrity, with a low attack complexity and no user interaction required for exploitation. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| The Qt Company | Qt | >= 0, <= 5.15.18, >= 6.0.0, <= 6.5.8, >= 6.6.0, <= 6.8.3, 6.9.0CNA affecteddefault unaffected |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:U/V:X/RE:M/U:Clear
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.