cvedb.io
CVE-2009-3720
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2009-11-03T16:30:12.563 · Last modified 2026-07-20T14:35:41.700

Summary

The updatePosition function in lib/xmltok_impl.c in libexpat in Expat 2.0.1, as used in Python, PyXML, w3c-libwww, and other software, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with crafted UTF-8 sequences that trigger a buffer over-read, a different vulnerability than CVE-2009-2625.

Affected products

libexpat_project — libexpat

Does this affect you?

Add your gear to cvedb and we'll alert you only when libexpat_project ships something exploited.

Check my exposure →

References

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