CVE-2023-28206highunder attackCWE-787

CVE-2023-28206: high-severity vulnerability in Apple macOS

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76Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.

ssvc Actcvss 8.6epss 23%
from disclosure to weapon35 days
Published on NVDApr 10
1st PoC+35d
CISA KEVApr 10
Action required by CISAfederal deadline: 2023-05-01

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In short

A flaw in Apple systems allowed apps to write data beyond intended memory boundaries, potentially letting them run malicious code with the highest system privileges. This was actively being exploited in the wild.

Technical detail

An out-of-bounds write vulnerability in macOS and iOS (CWE-787) permitted local code execution with kernel-level privileges when an app bypassed input validation. The vulnerability affected multiple OS versions and was documented as under active exploitation; remediation required patching across Big Sur, Monterey, Ventura, and iOS 15–16 lineups.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products
Apple · iOS and iPadOSApple · macOS
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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