Is It On KEV?

Apple iOS and iPadOS

YES - ON THE CISA KEV LIST
CVE-2021-30983

Apple iOS and iPadOS Buffer Overflow Vulnerability

CISA catalog due date2022-07-18
overdue since 2022-07-18
EPSS exploit probability (next 30 days)2.9% · 87percentile
From CVE publication to KEV listing307 days (2021-08-24 → 2022-06-27)
Remediation window (KEV listing to due date)21 days
Days on the KEV list1598 days
Date added to KEV2022-06-27
Known ransomware campaign useUnknown
VendorApple
ProductiOS and iPadOS
Weaknesses (CWE)CWE-119

Apple: 96 entries (5.4% of all KEV entries are from this vendor); 10 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

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

Required action (CISA)

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2021-30983

References

Other KEV entries for this vendor: Apple

Apple - Vendors with KEV entries

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