Critical 9.8Published Jul 21, 2016

CVE-2016-4608libxslt 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)

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It affects xmlsoft libxslt and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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libxslt 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-2016-4607, CVE-2016-4609, CVE-2016-4610, and CVE-2016-4612.

CVSS: 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/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

xmlsoft libxslt xmlsoft:libxslt	through 1.1.28	NVD
apple icloud apple:icloud	before 5.2.1	NVD
apple itunes apple:itunes	before 12.4.2	NVD
fedoraproject fedora fedoraproject:fedora	30	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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SK4YNISS22MJY22YX5I6V2U63QZAUEHA/
https://support.apple.com/HT206899	vendor-advisory
https://support.apple.com/HT206901	vendor-advisory
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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.