CVE-2026-110604: low-severity vulnerability in Michael R Sweet Mini-XML
Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
Published
28Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 2epss 0.2%
exploitation probability
0.2%top 88% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
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
Affected products
Michael R Sweet · Mini-XMLpublic PoCs found — 1
cve_referencehackmd.io/@haind-pwn/cve-2026-110604-mxml-strtod-locale-stack-overflowunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/michaelrsweet/mxml/blob/v4.0.6/mxml-file.c#L1860-L1887https://github.com/michaelrsweet/mxml/commit/367c7ddd3387f65e867d776216de274bcaa3dae1https://hackmd.io/@haind-pwn/cve-2026-110604-mxml-strtod-locale-stack-overflowhttps://hackmd.io/@haind-pwn/mxml-strtod-locale-stack-overflowhttps://www.vulncheck.com/advisories/mini-xml-4.0.0-through-4.0.6-stack-out-of-bounds-write-via-mxml-strtod