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CVE-2021-3537
MEDIUM · CVSS 5.9
EPSS exploitation probability: 0%
Published 2021-05-14T20:15:16.553 · Last modified 2026-06-17T04:05:18.547

Summary

A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability.

Affected products

xmlsoft — libxml2

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.