CVE-2021-42860
CVSS v3
7.5
HIGH
EPSS Score
1.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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
Technical details
- Published
- 2022-05-26
Frequently asked questions
What is CVE-2021-42860?
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
Is CVE-2021-42860 actively exploited?
Active exploitation of CVE-2021-42860 has not been confirmed. Its EPSS score was 1.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-42860?
CVE-2021-42860 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-42860 affecting your environment?
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