CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Apple iOS Webkit Memory Corruption Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
WebKit in Apple iOS before 9.3.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.
Affected products
apple: iphone os
References10
- lists.apple.com/archives/security-announce/2016/Aug/msg00000.ht… Broken LinkMailing ListVendor Advisory
- support.apple.com/HT207107 Release NotesVendor Advisory
- lists.apple.com/archives/security-announce/2016/Aug/msg00000.ht… Broken LinkMailing ListVendor Advisory
- support.apple.com/HT207107 Release NotesVendor Advisory
- www.exploit-db.com/exploits/44836/ ExploitThird Party AdvisoryVDB Entry
- www.youtube.com/watch?v=xkdPjbaLngE Exploit
- www.exploit-db.com/exploits/44836/ ExploitThird Party AdvisoryVDB Entry
- www.youtube.com/watch?v=xkdPjbaLngE Exploit
- www.securityfocus.com/bid/92653 Broken LinkThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1036694 Broken LinkThird Party AdvisoryVDB Entry
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 67% percentile: 99 · as of 8 November 2026
- CWE
- CWE-787
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.