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CriticalPython

CVE-2016-9063

An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.

CVSS Base Score
9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Probability
93%EPSS PERCENTILE0100

More exploitable than 93% of all CVEs · Top 7%

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Details
Published
2018-06-11
Last modified
2026-10-08
Affected
Python
References
NVD Detail OSV.dev GitHub Advisories

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Data from the National Vulnerability Database (NVD), CISA KEV, and FIRST.org EPSS. This product uses the NVD API but is not endorsed or certified by the NVD. EPSS is a probability estimate, not a guarantee of exploitation.