CVE-2021-30983VulnerabilityPublished 06/27/2022Updated 10/24/2026

CVE-2021-30983: Apple iOS and iPadOS Buffer Overflow Vulnerability

Affects Apple iOS and iPadOSSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 06/27/2022
KEV deadline: 07/18/2022
EPSS: 2.9% chance of exploitation in 30 days – higher than 86% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2021-30983 (opens in a new tab)

Description

A buffer overflow vulnerability exists in Apple iOS and iPadOS that could allow an application to execute code with kernel privileges. This vulnerability has been exploited in the wild. No specific affected versions or patch information is provided in the available data.

Summary

CVE-2021-30983 is a buffer overflow vulnerability in Apple iOS and iPadOS. It allows an application to execute arbitrary code with kernel-level privileges, potentially leading to full system compromise. The vulnerability is identified as CWE-119 and has been exploited in the wild. No explicit patch or remediation details are provided in the input data.

Impact

Successful exploitation of this vulnerability could allow an attacker to execute code with kernel privileges on affected iOS and iPadOS devices, potentially leading to complete device compromise. The vulnerability has been observed to be exploited in the wild, indicating active threat.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data.

Weaknesses

CWE-119Buffer Errors (Memory Bounds) (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 12:05:18 UTC

Weaknesses

References

Related threats