HIGH CISA KEV

CVE-2021-30900

CVSS v3

7.8

HIGH

EPSS Score

1.2%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

SSVC status

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.

CISA Known Exploited Vulnerability

Date Added
3/30/2023
Patch Due Date
4/20/2023
Ransomware Use
Unknown

Technical details

Published
8/24/2021

Frequently asked questions

What is CVE-2021-30900?

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.

Is CVE-2021-30900 actively exploited?

Yes. CVE-2021-30900 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 4/20/2023.

What is the CVSS score for CVE-2021-30900?

CVE-2021-30900 has a CVSS v3 base score of 7.8 (HIGH severity).

Is CVE-2021-30900 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.