Critical 9.8Published Jul 21, 2016

CVE-2016-4616libxml2 in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to cause a…

Updated under an hour ago (Nov 2, 2026, 12:10 AM ET)

Does this affect you?

It affects apple iphone_os and 5 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stackFree account, 3 products Every CVE for apple iphone_os Exploited in the last 30 days

libxml2 in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, a different vulnerability than CVE-2016-4614, CVE-2016-4615, and CVE-2016-4619.

CVSS: 9.8 CRITICAL (v3.0, NVD)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

apple iphone_os apple:iphone_os	before 9.3.3	NVD
apple mac_os_x apple:mac_os_x	before 10.11.6	NVD
apple tvos apple:tvos	before 9.2.2	NVD
apple watchos apple:watchos	before 2.2.2	NVD
apple icloud apple:icloud	before 5.2.1	NVD
apple itunes apple:itunes	before 12.4.2	NVD

References

References

http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html	mailing-list, vendor-advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html	mailing-list, vendor-advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html	mailing-list, vendor-advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html	mailing-list, vendor-advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html	mailing-list, vendor-advisory
http://www.securityfocus.com/bid/91826	third-party-advisory, vdb-entry
http://www.securitytracker.com/id/1036348	third-party-advisory, vdb-entry
https://support.apple.com/HT206899	vendor-advisory
https://support.apple.com/HT206901	vendor-advisory
https://support.apple.com/HT206902	vendor-advisory
1–10 of 13

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.