CVE-2021-31010highunder attackCWE-502

CVE-2021-31010: high-severity vulnerability in Apple macOS

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51Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 7.5epss 3.7%
from disclosure to weapon
Published on NVDAug 24
CISA KEV+366d
Action required by CISAfederal deadline: 2022-09-15

Apply updates per vendor instructions.

In short

A program on Apple devices could bypass security restrictions by exploiting how it reads untrusted data. This allowed a sandboxed app to escape its restrictions and potentially access sensitive information.

Technical detail

Deserialization vulnerability (CWE-502) in sandboxed processes on macOS, iOS, iPadOS, and watchOS allows circumvention of sandbox isolation through improper validation of serialized objects. The attack requires execution within a sandboxed context but can break confinement; this issue was exploited in the wild prior to patching.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

A deserialization issue was addressed through improved validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 12.5.5, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. A sandboxed process may be able to circumvent sandbox restrictions. Apple was aware of a report that this issue may have been actively exploited at the time of release..
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
Apple · macOSApple · watchOS
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