CVEs / CVE-2022-42827

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

Known exploited in the CISA KEV catalog since 25 Oct 2022
high 7.8 CVSS 3.1 (NVD)
EPSS 1.06% chance of exploitation in the next 30 days, higher than 64% of CVEs (30 Oct 2026)
Last changed at its sources 17 Jun 2026

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Summary

Apple iOS and iPadOS kernel contain an out-of-bounds write vulnerability which can allow an application to perform code execution with kernel privileges.
CISA, Known Exploited Vulnerabilities catalog

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..
The CVE record, via NVD · published 1 Nov 2022 · NVD status: Analyzed

Affected and fixed versions

As stated by the CVE record (from the CNA)
Product	Affected	Fixed in
Apple iOS and iPadOS	from unspecified, before 16.1	16.1
Apple iOS and iPadOS	from unspecified, before 15.7	15.7

Exploitation

In CISA KEV since	25 Oct 2022
Due date for US federal agencies	15 Nov 2022
Used in ransomware campaigns	Unknown
Required action	Apply updates per vendor instructions.

Severity

CVSS 3.1	7.8 high `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H` Scored by NVD
Weakness	CWE-787

References

CVE-2022-42827 on NVD
CVE-2022-42827 in the CISA KEV catalog
https://support.apple.com/en-us/HT213489 (cited by CISA)
https://support.apple.com/en-us/HT213489 Vendor Advisory
https://support.apple.com/en-us/HT213490 Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42827 US Government Resource

Sources

Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.

This product uses data from the NVD API but is not endorsed or certified by the NVD.