Exploitation Summary
CVE-2021-30900 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added March 30, 2023.
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.
References (4)
Core 4
Core References
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT212872
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212867
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212868
US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30900
Scores
CVSS v3
7.8
EPSS
0.0048
EPSS Percentile
65.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
active
Automatable
no
Technical Impact
total
Details
CISA KEV
2023-03-30
VulnCheck KEV
2023-03-29
InTheWild.io
2023-03-30
ENISA EUVD
EUVD-2021-17817
CWE
CWE-787
Status
published
Products (5)
apple/ipados
15.0
apple/ipados
< 14.8.1
apple/iphone_os
15.0
apple/iphone_os
< 14.8.1
apple/macos
< 11.6.1
Published
Aug 24, 2021
KEV Added
Mar 30, 2023
Tracked Since
Feb 18, 2026