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Vulnerability record · CVE-2016-4622 · published 22 July 2016

CVE-2016-4622: Apple safari memory buffer overflow vulnerability

Apple · Safari

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

8.8 CVSS 3.0 High EPSS 19% · top 2.8% CWE-119 · Memory buffer overflow
8.8CVSS 3.0 base score, v2 6.8
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
24References
17 Jun 2026Last modified by NVD

Description

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-4589, CVE-2016-4623, and CVE-2016-4624.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html Mailing ListVendor Advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html Mailing ListVendor Advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00004.html Mailing ListVendor Advisory
http://packetstormsecurity.com/files/138502/WebKitGTK-SOP-Bypass-Information-Disclosure.html Third Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/539295/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/91830 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1036343 Third Party AdvisoryVDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-16-485 Third Party AdvisoryVDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-16-486 Third Party AdvisoryVDB Entry
https://support.apple.com/HT206900 Vendor Advisory
https://support.apple.com/HT206902 Vendor Advisory
https://support.apple.com/HT206905 Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html Mailing ListVendor Advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html Mailing ListVendor Advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00004.html Mailing ListVendor Advisory
http://packetstormsecurity.com/files/138502/WebKitGTK-SOP-Bypass-Information-Disclosure.html Third Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/539295/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/91830 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1036343 Third Party AdvisoryVDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-16-485 Third Party AdvisoryVDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-16-486 Third Party AdvisoryVDB Entry
https://support.apple.com/HT206900 Vendor Advisory
https://support.apple.com/HT206902 Vendor Advisory
https://support.apple.com/HT206905 Vendor Advisory

Track CVE-2016-4622 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-4622), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.