Applied Cybernetics Group
Threat intel → detection pipeline
Friday, September 18, 2026
Data as of 13:09 UTC

Apple iOS and iPadOS Buffer Overflow Vulnerability

Added to KEV
2022-06-27
Federal due date
2022-07-18
Vendor
Apple
Product
iOS and iPadOS
EPSS
86.4th percentile (score 0.029, as of 2026-09-16)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2021-30983

CISA short description

Apple iOS and iPadOS contain a buffer overflow vulnerability that could allow an application to execute code with kernel privileges.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.