CVE-2021-30998

MEDIUM

iPadOS < 15.2 - Email Address Leak via S/MIME Encrypted Email

Title source: llm

Description

A S/MIME issue existed in the handling of encrypted email. This issue was addressed with improved selection of the encryption certificate. This issue is fixed in iOS 15.2 and iPadOS 15.2. A sender's email address may be leaked when sending an S/MIME encrypted email using a certificate with more than one email address.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT212976

Scores

CVSS v3 5.3

EPSS 0.0054

EPSS Percentile 41.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Details

Status published

Products (2)

apple/ipados < 15.2

apple/iphone_os < 15.2

Published Aug 24, 2021

Tracked Since Feb 18, 2026