CVE-2025-3512— Buffer overflow in QTextMarkdownImporter
Quick assessment
Affected
Qt Qt
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Qt是Qt开源的一个跨平台的应用程序开发框架。 Qt 6.8.0版本至6.8.4版本存在安全漏洞，该漏洞源于堆缓冲区溢出，可能导致任意代码执行。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-3512
Vulnerability Information
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Vulnerability Title
Buffer overflow in QTextMarkdownImporter
Source: CVE Program / CVE List V5
Vulnerability Description
There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.
This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Clear
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Qt 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qt是Qt开源的一个跨平台的应用程序开发框架。 Qt 6.8.0版本至6.8.4版本存在安全漏洞，该漏洞源于堆缓冲区溢出，可能导致任意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-3512
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V. Comments for CVE-2025-3512
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