CVE-2017-13860

Severity: medium (CVSS 5.9 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% 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. macOS before 10.13.2 is affected. The issue involves the "Mail Drafts" component. It allows man-in-the-middle attackers to read e-mail content by leveraging mishandling of S/MIME credential encryption.

Affected products

Apple Iphone Os: before 11.2 — fixed in 11.2
macOS: before 10.13.2 — fixed in 10.13.2

How to fix

Upgrade to a fixed version: Apple Iphone Os 11.2; macOS 10.13.2. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/102097
http://www.securitytracker.com/id/1039953
http://www.securitytracker.com/id/1039966
https://support.apple.com/HT208331
https://support.apple.com/HT208334
http://www.securityfocus.com/bid/102097
http://www.securitytracker.com/id/1039953
http://www.securitytracker.com/id/1039966
https://support.apple.com/HT208331
https://support.apple.com/HT208334

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