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Vulnerabilities / CVE-2016-9063

critical

CVE-2016-9063

firefox: Possible integer overflow to fix inside XML_Parse in Expat

Published Modified CWE 190
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium), Red Hat (low).

Description

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

Affected packages and fixed versions

SourcePackageFixed in
debian 11expat, libxmltok2.2.0-2
debian 12expat, libxmltok2.2.0-2
debian 13expat2.2.0-2
debian 14expat2.2.0-2
debian 7expatno fix listed
debian 8expat2.1.0-6+deb8u4
echoexpat, libxmltok2.2.0-2
rapidfort debian 12libxmltok0:1.2-4.1
rapidfort debian 13libxmltok0:1.2-4.1
rapidfort fedora 43python3.15, python3.15-debug, python3.15-devel and 11 more3.15.0-1.fc43
Red Hatcompat-expat1, expat, expat-devel and 1 moreno fix listed
root.io debian 11rootio-expat2.2.0-2
Show all 37 entries from 18 sources
SourcePackageFixed in
debian 11expat2.2.0-2
debian 11libxmltokno fix listed
debian 12expat2.2.0-2
debian 12libxmltokno fix listed
debian 13expat2.2.0-2
debian 14expat2.2.0-2
debian 7expatno fix listed
debian 8expat2.1.0-6+deb8u4
echoexpat2.2.0-2
echolibxmltokno fix listed
rapidfort debian 12libxmltok0:1.2-4.1
rapidfort debian 13libxmltok0:1.2-4.1
rapidfort fedora 43python3.153.15.0-1.fc43
rapidfort fedora 43python3.15-debug3.15.0-1.fc43
rapidfort fedora 43python3.15-devel3.15.0-1.fc43
rapidfort fedora 43python3.15-freethreading3.15.0-1.fc43
rapidfort fedora 43python3.15-freethreading-debug3.15.0-1.fc43
rapidfort fedora 43python3.15-freethreading-devel3.15.0-1.fc43
rapidfort fedora 43python3.15-freethreading-idle3.15.0-1.fc43
rapidfort fedora 43python3.15-freethreading-libs3.15.0-1.fc43
rapidfort fedora 43python3.15-freethreading-test3.15.0-1.fc43
rapidfort fedora 43python3.15-freethreading-tkinter3.15.0-1.fc43
rapidfort fedora 43python3.15-idle3.15.0-1.fc43
rapidfort fedora 43python3.15-libs3.15.0-1.fc43
rapidfort fedora 43python3.15-test3.15.0-1.fc43
rapidfort fedora 43python3.15-tkinter3.15.0-1.fc43
Red Hatcompat-expat1no fix listed
Red Hatexpatno fix listed
Red Hatexpat-develno fix listed
Red Hatexpat-staticno fix listed
root.io debian 11rootio-expat2.2.0-2
root.io debian 12rootio-expat2.2.0-2
root.io debian 13rootio-expat2.2.0-2
ubuntu 12.04firefox50.0+build2-0ubuntu0.12.04.2
ubuntu 14.04firefox50.0+build2-0ubuntu0.14.04.2
ubuntu 16.04firefox50.0+build2-0ubuntu0.16.04.2
ubuntu 16.10firefox50.0+build2-0ubuntu0.16.10.2

References

All 12 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.