How severe is CVE-2021-30883?

CVE-2021-30883 has a CVSS 3.1 base score of 7.8 (HIGH). EPSS estimates a 14.7% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2021-30883: Apple Multiple Products Memory Corruption

CISA Known Exploited Vulnerabilities

Apple Multiple Products Memory Corruption Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-05-23

Remediation due

2022-06-13

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2021-30883

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..

Severity

CVSS 3.1 · CISA7.8 HIGH

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Apple	iOS and iPadOS	unspecified to <15.0
Apple	iOS and iPadOS	unspecified to <14.8
Apple	macOS	unspecified to <12.0
Apple	macOS	unspecified to <11.6
Apple	macOS	unspecified to <8.1
Apple	macOS	unspecified to <15.1

References

6 Links

Other references

Record Details

Published

2021-08-24

Last updated

2025-10-21

Assigner (CNA)

apple

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.