# CVE-2021-30883: Apple Multiple Products Memory Corruption Vulnerability

> CVE-2021-30883: Apple Multiple Products Memory Corruption Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2021-30883
Last updated: 2025-10-21T23:25:36Z

- Published: 2021-08-24 18:49 UTC · Updated: 2025-10-21 23:25 UTC · Assigner: apple
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 14.7%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-05-23, federal due date 2022-06-13, ransomware use: Unknown

## 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..

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Apple: iOS and iPadOS
- Apple: macOS

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-30883)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2021-30883)
- [https://support.apple.com/en-us/HT212846](https://support.apple.com/en-us/HT212846)
- [https://support.apple.com/en-us/HT212868](https://support.apple.com/en-us/HT212868)
- [https://support.apple.com/en-us/HT212869](https://support.apple.com/en-us/HT212869)
- [https://support.apple.com/en-us/HT212872](https://support.apple.com/en-us/HT212872)
- [https://support.apple.com/en-us/HT212874](https://support.apple.com/en-us/HT212874)
- [https://support.apple.com/en-us/HT212876](https://support.apple.com/en-us/HT212876)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2021-30883 · Markdown: https://rewindex.com/cve/CVE-2021-30883.md · JSON: https://rewindex.com/api/v1/cves/CVE-2021-30883 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:16.440Z