CVE-2026-110604 json
Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
published 26d ago modified 26d ago also EUVD-2026-101232
- cvss
- 3.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- mxml Debian 14 4.0.6-3
debian advisories DEBIAN-CVE-2026-110604
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Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-110604 updated cvss 3.6
mxml: Mini-XML: Denial of Service via off-by-one stack buffer overflow
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 26d ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- hackmd.io https://hackmd.io/@haind-pwn/cve-2026-110604-mxml-strtod-locale-stack-overflow referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.0 | 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 |
| CNA | 3.1 | 3.6 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L |
| CNA | 4.0 | 2.0 | 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 |
Affected products
- Michael R Sweet Mini-XML
Classification
- Weakness
-
- CWE-193 Off-by-one Error
References
-
github.com
/michaelrsweet/mxml/commit/367c7ddd3387f65e867d776216de274bcaa3dae1
patch
-
hackmd.io
/@haind-pwn/cve-2026-110604-mxml-strtod-locale-stack-overflow
exploit
-
hackmd.io
/@haind-pwn/mxml-strtod-locale-stack-overflow
third-party-advisory
-
github.com
/michaelrsweet/mxml/blob/v4.0.6/mxml-file.c#L1860-L1887
technical-description
-
vulncheck.com
/advisories/mini-xml-4.0.0-through-4.0.6-stack-out-of-bounds-write-via-mxml-strtod
third-party-advisory
Sources
- CVE List CVE-2026-110604
- NVD CVE-2026-110604
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.