CVE-2016-9063

CRITICALCVSS 9.8/10EPSS 5.54%

Last modified

CVE-2016-9063 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.. EPSS estimates a 5.54% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
5.54%

91.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MozillaFirefox< 50
DebianDebian Linux8.0
DebianDebian Linux9.0
DebianDebian Linux10.0
PythonPython>= 2.7.0, < 2.7.15
PythonPython>= 3.3.0, < 3.3.7
PythonPython>= 3.4.0, < 3.4.7
PythonPython>= 3.5.0, < 3.5.4
PythonPython>= 3.6.0, < 3.6.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-9063?
An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.
How severe is CVE-2016-9063?
CVE-2016-9063 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 5.54% probability of exploitation in the next 30 days.
How do I fix CVE-2016-9063?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9063?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST