- Description
- 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.
- Source
- a59d8014-47c4-4630-ab43-e1b13cbe58e3
- NVD status
- Awaiting Analysis
CVSS 4.0
- Type
- Secondary
- Base score
- 8.4
- Impact score
- -
- Exploitability score
- -
- Vector string
- 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
- Severity
- HIGH
- a59d8014-47c4-4630-ab43-e1b13cbe58e3
- CWE-20
- Hype score
- Not currently trending
URGENT: #Fedora 42’s Qt6 has a critical DoS flaw (CVE-2025-5455). Patch via: su -c 'dnf upgrade --advisory FEDORA-2025-c546fd3f09' Read more: 👇 https://t.co/KbQDtSrLt0 #Linux #CyberSecurity https://t.co/Tna7s6TM9u
@Cezar_H_Linux
12 Jun 2025
24 Impressions
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‼️ #Fedora42 Alert: Qt6-QtSerialBus DoS flaw (CVE-2025-5455) fixed in Qt 6.9.1. Attackers can crash systems via CAN/ModBus packets. Patch: sudo dnf upgrade --advisory FEDORA-2025-c546fd3f09 Read more:👇 https://t.co/F5pqw3JcbM #LinuxSecurity #IoT https://t.co/bcXL9DreMT
@Cezar_H_Linux
12 Jun 2025
28 Impressions
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CVE-2025-5455 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 fun… https://t.co/1sJ43ueiMf
@CVEnew
2 Jun 2025
416 Impressions
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[CVE-2025-5455: HIGH] Critical security vulnerability patched in Qt versions 5.15.19, 6.5.9, 6.8.4, and 6.9.1. Attackers could trigger a denial of service through a malcrafted URL. Update now!#cve,CVE-2025-5455,#cybersecurity https://t.co/cSnEeeBecJ https://t.co/OjtjHxVV1E
@CveFindCom
2 Jun 2025
55 Impressions
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