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CVE-2026-110604— Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()

Quick assessment

Affected
Michael R Sweet Mini-XML
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.

Mini-XML 4.0.0 到 4.0.6 版本中存在一个栈上缓冲区越界写入漏洞，具体位于 mxml_strtod() 函数中，当本地化环境中的小数点字符不是 '.' 时触发。攻击者可以构造包含一个由 63 位数字组成的 REAL 值，并在其后附加 '.' 字符的 XML 输入，从而导致 NUL 字节被写入到 64 字节的栈缓冲区之外，破坏栈内存或导致程序崩溃。

CVSS 3.6 · Low EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
Michael R Sweet Mini-XML 4.0.0≤ 4.0.6 affected
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I. Basic Information for CVE-2026-110604

Vulnerability Information
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Vulnerability Title
Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
Source: CVE Program / CVE List V5
Vulnerability Description
Mini-XML 4.0.0 through 4.0.6 contains an off-by-one stack out-of-bounds write in mxml_strtod() when the locale decimal point is not '.'. Attackers can supply XML with a 63-digit REAL value followed by '.' to write a NUL byte past the 64-byte stack buffer, corrupting stack memory or crashing the process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
Off-by-one错误
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Michael R Sweet Mini-XML 4.0.0 ~ 4.0.6 -

II. Public POCs for CVE-2026-110604

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III. Intelligence Information for CVE-2026-110604

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Patches & Fixes for CVE-2026-110604 (1)

Other References for CVE-2026-110604 (2)

IV. Related Vulnerabilities

Same weakness: CWE-193

V. Comments for CVE-2026-110604

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