How severe is CVE-2022-42827?

CVE-2022-42827 has a CVSS 3.1 base score of 7.8 (HIGH). EPSS estimates a 1.1% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2022-42827: Apple iOS and iPadOS Out-of-Bounds Write Vulnerability

CISA Known Exploited Vulnerabilities

Apple iOS and iPadOS Out-of-Bounds Write Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-10-25

Remediation due

2022-11-15

Required action
Apply updates per vendor instructions.

CISA notes
https://support.apple.com/en-us/HT213489; https://nvd.nist.gov/vuln/detail/CVE-2022-42827

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.7.1 and iPadOS 15.7.1, iOS 16.1 and iPadOS 16. 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..

Severity

CVSS 3.1 · CISA7.8 HIGH

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Exploitation Context

as of October 17, 2026

All KEV statistics→

CISA added CVE-2022-42827 to the KEV catalog 7 days before its CVE record was published.
It is one of 95 Apple entries in the CISA KEV catalog, and one of 26 added in 2022.
Its current EPSS score (1.1%) is higher than that of 4% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Apple	Apple iOS and iPadOS	unspecified to <16.1
Apple	Apple iOS and iPadOS	unspecified to <15.7

References

2 Links

Other references

Record Details

Published

2022-11-01

Last updated

2025-10-21

Assigner (CNA)

apple

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.