CVE-2016-5300

Name: CVE-2016-5300
Creator: NVD / NIST
Published: 2016-06-16T18:59:10.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.54%

Last modified Jun 17, 2026

CVE-2016-5300 is a vulnerability of currently unknown severity. The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.. EPSS estimates a 6.54% chance of exploitation in the next 30 days.

Description

The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.

Metrics

EPSS Probability

6.54%

92.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	15.10
Canonical	Ubuntu Linux	16.04
Debian	Debian Linux	8.0
Libexpat Project	Libexpat	< 2.2.0
Google	Android	4.4.4
Google	Android	5.0.2
Google	Android	5.1.1
Google	Android	6.0
Google	Android	6.0.1

References

http://www.debian.org/security/2016/dsa-3597Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/04/4Mailing List
http://www.openwall.com/lists/oss-security/2016/06/04/5Mailing List
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlPatch, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
http://www.securityfocus.com/bid/91159Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-3010-1Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10365
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://security.gentoo.org/glsa/201701-21Third Party Advisory
https://source.android.com/security/bulletin/2016-11-01.htmlThird Party Advisory
https://www.tenable.com/security/tns-2016-20Third Party Advisory
http://www.debian.org/security/2016/dsa-3597Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/04/4Mailing List
http://www.openwall.com/lists/oss-security/2016/06/04/5Mailing List
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlPatch, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
http://www.securityfocus.com/bid/91159Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-3010-1Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10365
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://security.gentoo.org/glsa/201701-21Third Party Advisory
https://source.android.com/security/bulletin/2016-11-01.htmlThird Party Advisory
https://www.tenable.com/security/tns-2016-20Third Party Advisory

Timeline

Published: Jun 16, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-5300?

How severe is CVE-2016-5300?

Severity scoring for CVE-2016-5300 is pending analysis. The EPSS model estimates a 6.54% probability of exploitation in the next 30 days.

How do I fix CVE-2016-5300?

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-2016-5300?

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

Scan your code now

Source: NVD / NIST