Vulnerability in Michael R Sweet Mini-Xml
CVE-2026-110604
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.6 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@haind-pwn/mxml-strtod-locale-stack-overflow (third-party-advisory)
- github.com/michaelrsweet/mxml/blob/v4.0.6/mxml-file.c (technical-description)
- github.com/michaelrsweet/mxml/commit/367c7ddd3387f65e867d776216de274bcaa3dae1 (patch)
- www.vulncheck.com/advisories/mini-xml-4.0.0-through-4.0.6-stack-out-of-bounds-w… (third-party-advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
Frequently asked questions
- What is CVE-2026-110604?
- CVE-2026-110604 is a low-severity vulnerability in Michael R Sweet Mini-Xml, classified under Off-by-one Error. CVSS score: 3.6/10. Published 2026-10-14.
- How severe is CVE-2026-110604?
- Low severity. CVSS v3 base score is 3.6 out of 10.