High severity · published Apr 2, 2021
CVE-2020-29633
An authentication issue was addressed with improved state management
8.8
CVSS
1.1%
EPSS
No
On KEV
Description
An authentication issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. An attacker in a privileged network position may be able to bypass authentication policy.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
11.0 before 11.2 · source: NVD
MO
Mac OS X · Apple
10.14 before 10.14.6; 10.15 before 10.15.7; 10.14.6; 10.14.6; 10.14.6; 10.14.6; +10 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-29633
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-29633
Vendor Advisory
https://support.apple.com/en-us/HT212011
Vendor Advisory
https://support.apple.com/en-us/HT212147
More from macOS
10.0
CVE-2025-43300
Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2025-24085
Apple Multiple Products Use-After-Free Vulnerability
9.8
CVE-2026-65400
Apple macOS Improper Authentication Vulnerability
9.8
CVE-2025-31200
Apple Multiple Products Memory Corruption Vulnerability