CVE-2026-110604Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
- 2.0LowCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits1
References tagged exploit1 reference
Timeline
ID reserved
By VulnCheck
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulnCheckCNA (assigner) | 4.0 | Low2.0 | 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 |
| VulnCheckCNA (assigner) | 3.1 | Low3.6 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L |
| NVDNVD · Deferred | 4.0 | Low2.0 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.0.
Affected products
- affected 4.0.0 – ≤ 4.0.6
References
References5
- https://hackmd.io/@haind-pwn/mxml-strtod-locale-stack-overflow (opens in a new tab)third-party-advisory
- https://github.com/michaelrsweet/mxml/blob/v4.0.6/mxml-file.c#L1860-L1887 (opens in a new tab)technical-description
- https://github.com/michaelrsweet/mxml/commit/367c7ddd3387f65e867d776216de274bcaa3dae1 (opens in a new tab)patch
- VulnCheck Advisory: Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod() (opens in a new tab)third-party-advisory
- https://hackmd.io/@haind-pwn/cve-2026-110604-mxml-strtod-locale-stack-overflow (opens in a new tab)exploit
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-101232 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-110604)Record last updated .