VulnerabilityModified

CVE-2021-30998

A sender's email address may be leaked when sending an S/MIME encrypted email using a certificate with more than one email address.

MEDIUM 5.3EPSS 0.55%

Does this matter?

Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.55% probability · 44th percentile
CISA KEV: Not listed
Affected: apple/ipados · apple/iphone os
Source: product-security@apple.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.