Vulnerability Details : CVE-2021-30807

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.5.1, iOS 14.7.1 and iPadOS 14.7.1, watchOS 7.6.1. 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.
Published 2021-10-19 14:15:08
Updated 2021-10-20 14:56:43
Source Apple Inc.
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionExecute code

Products affected by CVE-2021-30807

CVE-2021-30807 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Apple Multiple Products Memory Corruption Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Apple iOS, iPadOS, macOS, and watchOS IOMobileFrameBuffer contain a memory corruption vulnerability which may allow an application to execute code with kernel privileges.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2021-30807
Added on 2021-11-03 Action due date 2021-11-17

Exploit prediction scoring system (EPSS) score for CVE-2021-30807

EPSS FAQ
0.12%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-30807

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.3
 HIGH AV:N/AC:M/Au:N/C:C/I:C/A:C
8.6
10.0
 NIST
7.8
 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1.8
5.9
 NIST

References for CVE-2021-30807

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