CVE-2025-5455
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/R:U/RE:M/U:Clear
Summary
An issue was found in the private API function qDecodeDataUrl() in QtCore, which is used in QTextDocument and QNetworkReply, and, potentially, in user code.
If the function was called with malformed data, for example, an URL that contained a "charset" parameter that lacked a value (such as "data:charset,"), and Qt was built with assertions enabled, then it would hit an assertion, resulting in a denial of service (abort).
This impacts Qt up to 5.15.18, 6.0.0->6.5.8, 6.6.0->6.8.3 and 6.9.0. This has been fixed in 5.15.19, 6.5.9, 6.8.4 and 6.9.1.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Qt | Qt | 0 <= 5.15.18 | affected |
| Qt | Qt | 6.0.0 <= 6.5.8 | affected |
| Qt | Qt | 6.5.9 | unaffected |
| Qt | Qt | 6.6.0 <= 6.8.3 | affected |
| Qt | Qt | 6.8.4 | unaffected |
| Qt | Qt | 6.9.0 | affected |
| Qt | Qt | 6.9.1 | unaffected |
Weaknesses
- CWE-20: CWE-20 Improper Input Validation
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
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