High severity · published Oct 19, 2021
CVE-2021-30807
Apple Multiple Products Memory Corruption Vulnerability
In wildKEV
7.8
CVSS
28.8%
EPSS
Yes
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)28.8% · higher than 98% of CVEs
Exploited in the wildYes
CISA KEVListed Nov 3, 2021
Federal remediation dueNov 17, 2021
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 11.5; before 14.7; before 7.6 · source: vendor, NVD
IO
iOS · Apple
before 14.7.1 · source: NVD
WA
Watchos · Apple
before 7.6.1 · source: NVD
MP
Multiple Products · Apple
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-30807
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-30807
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://support.apple.com/en-us/HT212622
x_refsource_MISC
https://support.apple.com/en-us/HT212623
x_refsource_MISC
https://support.apple.com/en-us/HT212713
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