What’s Vulnerable › Vulnerabilities

CVE-2017-13874

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-12-25 · updated 2026-06-17

Description

An issue was discovered in certain Apple products. iOS before 11.2 is affected. The issue involves the "Mail" component. It might allow remote attackers to bypass an intended encryption protection mechanism by leveraging incorrect S/MIME certificate selection.

Affected products

• Apple Iphone Os: before 11.2 — fixed in 11.2

How to fix

Upgrade to a fixed version: Apple Iphone Os 11.2. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/102097
• http://www.securitytracker.com/id/1039953
• https://support.apple.com/HT208334
• http://www.securityfocus.com/bid/102097
• http://www.securitytracker.com/id/1039953
• https://support.apple.com/HT208334

Get alerted when CVE-2017-13874 or the next vulnerability affects your stack