CVE-2021-1782

A race condition was addressed with improved locking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited..
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7 HIGH
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
appleCNA
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CVEADP
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CISA-ADPADP
7 HIGH
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 91%
VendorProductVersion
appleipados
𝑥
< 14.4
appleiphone_os
𝑥
< 14.4
applemac_os_x
10.14 ≤
𝑥
< 10.14.6
applemac_os_x
10.15 ≤
𝑥
< 10.15.7
applemac_os_x
10.14.6
applemac_os_x
10.14.6:security_update_2019-004
applemac_os_x
10.14.6:security_update_2019-005
applemac_os_x
10.14.6:security_update_2019-006
applemac_os_x
10.14.6:security_update_2019-007
applemac_os_x
10.14.6:security_update_2020-001
applemac_os_x
10.14.6:security_update_2020-002
applemac_os_x
10.14.6:security_update_2020-003
applemac_os_x
10.14.6:security_update_2020-004
applemac_os_x
10.14.6:security_update_2020-005
applemac_os_x
10.14.6:security_update_2020-006
applemac_os_x
10.14.6:security_update_2020-007
applemac_os_x
10.14.6:supplemental_update
applemac_os_x
10.14.6:supplemental_update_2
applemac_os_x
10.15.7
applemac_os_x
10.15.7:supplemental_update
applemacos
11.0 ≤
𝑥
< 11.2
appletvos
𝑥
< 14.4
applewatchos
𝑥
< 7.3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://support.apple.com/en-us/HT212146
https://support.apple.com/en-us/HT212147
https://support.apple.com/en-us/HT212148
https://support.apple.com/en-us/HT212149
https://support.apple.com/en-us/HT212146
https://support.apple.com/en-us/HT212147
https://support.apple.com/en-us/HT212148
https://support.apple.com/en-us/HT212149