Vulnerability Details : CVE-2020-27921
A race condition was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.
Vulnerability category: Execute code
Exploit prediction scoring system (EPSS) score for CVE-2020-27921
Probability of exploitation activity in the next 30 days: 0.08%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 31 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-27921
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
[email protected] |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
[email protected] |
CWE ids for CVE-2020-27921
-
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by: [email protected] (Primary)
References for CVE-2020-27921
-
https://support.apple.com/en-us/HT211931
Vendor Advisory
-
https://support.apple.com/en-us/HT212011
Vendor Advisory
Products affected by CVE-2020-27921
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*