CISA KEV · Known exploitedHigh

CVE-2023-28206

Apple iOS, iPadOS, and macOS

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Monterey 12.6.5, iOS 16.4.1 and iPadOS 16.4.1, macOS Ventura 13.3.1, iOS 15.7.5 and iPadOS 15.7.5, macOS Big Sur 11.7.6. An app 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: 8.6
EPSS: 24.5%
CISA KEV: Listed
Published: 2023.04.11

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability24.5%

Technical severityCVSS 8.6

Vulnerability overview

Affected product and versions

Product: Apple iOS, iPadOS, and macOS
Affected versions: unspecified, < 15.7.5, >= 16.0 < 16.4.1, < 11.7.6, >= 12.0 < 12.6.5, >= 13.0 < 13.3.1
Fixed versions: 15.7.5, 16.4.1, 11.7.6, 12.6.5, 13.3.1

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2023.05.01

1
Identify
Confirm that Apple iOS, iPadOS, and macOS and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CWE: CWE-787
KEV added: 2023.04.10
Ransomware use: 미확인