CVE-2026-110604
Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
- State
- Published
- Severity
- 2.0 Low
- Published
- Oct 14, 2026
- Updated
- Oct 14, 2026
- Reserved
- Oct 14, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.0 Low | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.6 Low | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L | VulnCheck |
Weaknesses
- CWE-193 Off-by-one Error
Affected Products
| Product | Versions |
|---|---|
Mini-XMLMichael R Sweet |
|
References
- https://hackmd.io/@haind-pwn/mxml-strtod-locale-stack-overflowthird-party-advisory
- https://github.com/michaelrsweet/mxml/blob/v4.0.6/mxml-file.c#L1860-L1887technical-description
- https://github.com/michaelrsweet/mxml/commit/367c7ddd3387f65e867d776216de274bcaa3dae1patch
- VulnCheck Advisory: Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()third-party-advisory
- https://hackmd.io/@haind-pwn/cve-2026-110604-mxml-strtod-locale-stack-overflowexploit
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