A stack buffer overflow exists in Mini-XML v3.2.
Priority LOW 35CWE-772Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-772.
Summary
A stack buffer overflow exists in Mini-XML v3.2. When inputting an unformed XML string to the mxmlLoadString API, it will cause a stack-buffer-overflow in mxml_string_getc:2611. NOTE: it is unclear whether this input is allowed by the API specification
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01037 64th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mini-xml_project:mini-xml:3.2:*:*:*:*:*:*:* | 3.2 | Vulnerable | Mini-xml Project |
- cpe:2.3:a:mini-xml_project:mini-xml:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·Mini-xml Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-42860
- 2026-10-03 Alias added: GHSA-g69r-p4mx-3r83
References
More Mini-xml Project Mini-xml vulnerabilities
- TI-2018-14183 An issue has been found in Mini-XML (aka mxml) 2.12. CVSS 3.1HIGH 8.8
- TI-2021-19017 A memory leak issue was discovered in Mini-XML v3.2 that could cause a denial of service. CVSS 3.1HIGH 7.5
- TI-2016-03936 The mxml_write_node function in mxml-file.c in mxml 2.9, 2.7, and possibly earlier allows… CVSS 3.1MEDIUM 5.5
- TI-2016-03935 The mxmlDelete function in mxml-node.c in mxml 2.9, 2.7, and possibly earlier allows… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2021-42860 · CVE Program
- CVE-2021-42860 · NVD
- FIRST EPSS
- GHSA-g69r-p4mx-3r83 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences