CVE-2026-13326— Out-of-bounds read and integer underflow vulnerability in QNdefNfcTextRecord impacts Qt NFC module
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 NFC 模块在解析语言代码长度时存在越界读取漏洞。物理接近的攻击者可通过构造特定的 NFC 标签，导致拒绝服务（DoS）或有限的内存信息泄露。
Possible ATT&CK Techniques 1 AI
T1557.001 · Name Resolution Poisoning and SMB Relay
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I. Basic Information for CVE-2026-13326
Vulnerability Information
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Vulnerability Title
Out-of-bounds read and integer underflow vulnerability in QNdefNfcTextRecord impacts Qt NFC module
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds read in Qt NFC's language code length parsing allows a physically proximate attacker to cause a denial of service or limited memory disclosure via a crafted NFC tag.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-13326
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Patches & Fixes for CVE-2026-13326 (1)
IV. Related Vulnerabilities
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Same weakness: CWE-125
V. Comments for CVE-2026-13326
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