7.8

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

CVSS: 7.8v3.1HighKEVAnalyzed
Published 01-11-2022Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2022-42827 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in Apple iOS and iPadOS. It is known to be exploited: CISA lists it, first on 25-10-2022. EPSS estimates a 1.07% chance of exploitation in the next 30 days, higher than 64.4% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.07%
0%100%
Low · +0.02 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-10-2022
    Added to CISA KEVApple iOS and iPadOS Out-of-Bounds Write Vulnerability
  2. 01-11-2022
    PublishedVulnerability first disclosed.
  3. 15-11-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

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..

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.07%

Chance of exploitation in the next 30 days

Percentile

64%

Versus all other CVEs

30-day change

+0.02 pp

From 1.05% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.07%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
25-10-2022
Federal due date
15-11-2022

CISA required action

Apply updates per vendor instructions. support.apple.com/en-us/HT213489 nvd.nist.gov/vuln/detail/CVE-2022-42827

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apple3 products

1 vendor · 3 products

References

3 links