CVE-2021-30983

HighCVSS 7.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-120

Affected software

No affected versions have been published.

Timeline

Published
Aug 24, 2021
Last modified
Jun 17, 2026
Added to CISA KEV
Jun 27, 2022
NVD status
Analyzed

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CVE-2021-30983: High severity, CVSS 7.8 | Vulnix