CVE-2021-30983

Apple iOS and iPadOS

Published 24 Aug 2021 · updated 17 Jun 2026 · Analyzed

7.8 High · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 27 Jun 2022, with a remediation deadline of 18 Jul 2022 for US federal agencies.

Required action: Apply updates per vendor instructions.

Description

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.

References

support.apple.com/en-us/HT212976 · Release Notes, Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30983 · US Government Resource