CVE-2022-21987
Microsoft SharePoint Server Spoofing Vulnerability
8.0 High
Microsoft SharePoint Server Spoofing Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
2.02%Up 1.1 points since Feb 10, 2022
What each source reports
CVE List Score used
Microsoft SharePoint Server Spoofing Vulnerability
Microsoft SharePoint Server Spoofing Vulnerability
- Record
CVE-2022-21987- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2022-27141
Microsoft SharePoint Server Spoofing Vulnerability
- Record
EUVD-2022-27141- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-g8ch-3jp7-hcm8
Microsoft SharePoint Server Spoofing Vulnerability.
Microsoft SharePoint Server Spoofing Vulnerability.
- Record
GHSA-g8ch-3jp7-hcm8- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
NVD
Microsoft SharePoint Server Spoofing Vulnerability
- Record
CVE-2022-21987- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.0 Medium
AV:N/AC:M/Au:S/C:P/I:P/A:P - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-21987 is a high vulnerability (CVSS 8.0) in Microsoft Sharepoint Server, published February 9, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.02%, the 81st percentile. No source names a fixed version.