CVE-2021-43890
is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Microsoft Windows AppX Installer Spoofing Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Microsoft Windows AppX Installer contains a spoofing vulnerability which has a high impacts to confidentiality, integrity, and availability.
Added on
2021-12-15
Action due date
2021-12-29
Exploit prediction scoring system (EPSS) score for CVE-2021-43890
Probability of exploitation activity in the next 30 days: 0.25%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 62 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-43890
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
6.0
|
MEDIUM | AV:N/AC:M/Au:S/C:P/I:P/A:P |
6.8
|
6.4
|
[email protected] |
|
7.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
[email protected] |
|
7.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
[email protected] |
References for CVE-2021-43890
-
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43890
Patch;Vendor Advisory
Products affected by CVE-2021-43890
- cpe:2.3:a:microsoft:app_installer:*:*:*:*:*:*:*:*