CVE-2016-4658

Name: CVE-2016-4658
Creator: NVD / NIST
Published: 2016-09-25T10:59:02.343+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 8.63%

Last modified Jun 17, 2026

CVE-2016-4658 is a vulnerability of currently unknown severity. xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.. EPSS estimates a 8.63% chance of exploitation in the next 30 days.

Description

xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.

Metrics

EPSS Probability

8.63%

94.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Apple	Iphone Os	< 10.0
Apple	Mac Os X	< 10.12
Apple	Tvos	< 10.0
Apple	Watchos	< 3.0
Xmlsoft	Libxml2	< 2.9.5

References

http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlMailing List, Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.htmlMailing List, Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.htmlMailing List, Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.htmlMailing List, Vendor Advisory
http://www.securityfocus.com/bid/93054Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036858Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038623Third Party Advisory, VDB Entry
https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344bPatch, Third Party Advisory
https://security.gentoo.org/glsa/201701-37Third Party Advisory
https://support.apple.com/HT207141Vendor Advisory
https://support.apple.com/HT207142Vendor Advisory
https://support.apple.com/HT207143Vendor Advisory
https://support.apple.com/HT207170Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlMailing List, Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.htmlMailing List, Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.htmlMailing List, Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.htmlMailing List, Vendor Advisory
http://www.securityfocus.com/bid/93054Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036858Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038623Third Party Advisory, VDB Entry
https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344bPatch, Third Party Advisory
https://security.gentoo.org/glsa/201701-37Third Party Advisory
https://support.apple.com/HT207141Vendor Advisory
https://support.apple.com/HT207142Vendor Advisory
https://support.apple.com/HT207143Vendor Advisory
https://support.apple.com/HT207170Vendor Advisory

Timeline

Published: Sep 25, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-4658?

How severe is CVE-2016-4658?

Severity scoring for CVE-2016-4658 is pending analysis. The EPSS model estimates a 8.63% probability of exploitation in the next 30 days.

How do I fix CVE-2016-4658?

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-2016-4658?

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

Scan your code now

Source: NVD / NIST