What’s Vulnerable › Vulnerabilities

CVE-2016-1802

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% 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

CCCrypt in CommonCrypto in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1 mishandles return values during key-length calculations, which allows attackers to obtain sensitive information via a crafted app.

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
• Apple watchOS: before 2.2.1 — fixed in 2.2.1

How to fix

Upgrade to a fixed version: Apple Iphone Os 9.3.2; macOS 10.11.5; Apple tvOS 9.2.1; Apple watchOS 2.2.1. 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/msg00003.html
• http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
• http://www.securityfocus.com/bid/90694
• http://www.securitytracker.com/id/1035890
• https://support.apple.com/HT206564
• https://support.apple.com/HT206566
• https://support.apple.com/HT206567
• https://support.apple.com/HT206568
• http://lists.apple.com/archives/security-announce/2016/May/msg00001.html
• http://lists.apple.com/archives/security-announce/2016/May/msg00002.html

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