CVE-2016-9063

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

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

5.4% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-25)

CWE

CWE-190

Published

2018-06-11

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• mozilla:firefox
• python:python

References

• http://www.securityfocus.com/bid/94337
• http://www.securitytracker.com/id/1037298
• http://www.securitytracker.com/id/1039427
• https://bugzilla.mozilla.org/show_bug.cgi?id=1274777
• https://www.debian.org/security/2017/dsa-3898

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