CVE-2026-110604
Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
CVSS Score
3.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-193 |
| Vendor | michael r sweet |
| Product | mini-xml |
| Published | Oct 14, 2026 |
| Last Updated | Oct 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
Michael R Sweet / Mini-XML
4.0.0 ≤ 4.0.6
References
hackmd.io: https://hackmd.io/@haind-pwn/mxml-strtod-locale-stack-overflow github.com: https://github.com/michaelrsweet/mxml/blob/v4.0.6/mxml-file.c#L1860-L1887 github.com: https://github.com/michaelrsweet/mxml/commit/367c7ddd3387f65e867d776216de274bcaa3dae1 vulncheck.com: https://www.vulncheck.com/advisories/mini-xml-4.0.0-through-4.0.6-stack-out-of-bounds-write-via-mxml-strtod hackmd.io: https://hackmd.io/@haind-pwn/cve-2026-110604-mxml-strtod-locale-stack-overflow
Credits
HaiND from the Post and Telecommunication Institute of Technology