CVE-2021-30997

7.5 highEPSS 0.7%

High (7.5) in apple. EPSS 0.7% chance of exploitation in the next 30 days.

A S/MIME issue existed in the handling of encrypted email. This issue was addressed by not automatically loading some MIME parts. This issue is fixed in iOS 15.2 and iPadOS 15.2. An attacker may be able to recover plaintext contents of an S/MIME-encrypted e-mail.

Severity

CVSS 3.1

7.5 high

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
CWE: CWE-312
Published: 2021-08-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apple:ipados
apple:iphone_os

References

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

Check your stack JSON