CVE-2021-30997
HIGHCVSS 7.5/10EPSS 0.68%
Last modified
CVE-2021-30997 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A S/MIME issue existed in the handling of encrypted email. This issue was addressed by not automatically loading some MIME parts. EPSS estimates a 0.68% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 15.2 |
| Apple | Iphone Os | < 15.2 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30997?
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.
How severe is CVE-2021-30997?
CVE-2021-30997 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30997?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-30997?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST