The CFNetwork HTTPProtocol component in Apple iOS before 9 mishandles HSTS state, which allows remote attackers to bypass the Safari private-browsing protection mechanism and track users via a crafted web site.
Base Score: 5
Impact Score: 2.9
Exploitability Score: 10
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to 8.4.1 (inclusive)
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