High severity · published Dec 15, 2021
CVE-2021-43877
ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability
8.8
CVSS
0.7%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Asp.net Core · Microsoft
3.1; 5.0; 6.0 · source: NVD
VS
Visual Studio 2019 · Microsoft
16.7; 16.9; 16.11 · source: NVD
VS
Visual Studio 2022 · Microsoft
17.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43877
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43877
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43877
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