CVE-2016-1801

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-05-20 · updated 2026-06-17
Weakness: CWE-200

Description

The CFNetwork Proxies subsystem in Apple iOS before 9.3.2, OS X before 10.11.5, and tvOS before 9.2.1 mishandles URLs in http and https requests, which allows remote attackers to obtain sensitive information via unspecified vectors.

Affected products

Apple Iphone Os: before 9.3.2 — fixed in 9.3.2
macOS: before 10.11.5 — fixed in 10.11.5
Apple tvOS: before 9.2.1 — fixed in 9.2.1

How to fix

Upgrade to a fixed version: Apple Iphone Os 9.3.2; macOS 10.11.5; Apple tvOS 9.2.1. Check the vendor advisory for mitigations.

References

http://lists.apple.com/archives/security-announce/2016/May/msg00001.html
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
http://www.securityfocus.com/bid/90697
http://www.securitytracker.com/id/1035890
https://support.apple.com/HT206564
https://support.apple.com/HT206567
https://support.apple.com/HT206568
https://www.kb.cert.org/vuls/id/877625
http://lists.apple.com/archives/security-announce/2016/May/msg00001.html
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html

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