CVE-2021-26886 : User Profile Service Denial of Service Vulnerability

User Profile Service Denial of Service Vulnerability

Published 2021-03-11 16:15:16

Updated 2023-12-29 20:15:55

Source Microsoft Corporation

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2021-26886

Microsoft » Windows Server 2012 » Version: N/A
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2012 » Version: R2
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 8.1 » Version: N/A
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Rt 8.1 » Version: N/A
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: N/A
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 1607
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 1803
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 1809
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 1909
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 20h2
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 2004
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2016 » Version: N/A
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2016 » Version: 1909
cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2016 » Version: 20h2
cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2016 » Version: 2004
cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2019 » Version: N/A
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-26886

EPSS FAQ

0.23%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 43 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-26886

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
3.6	LOW	AV:L/AC:L/Au:N/C:N/I:P/A:P	3.9	4.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: Partial
6.1	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H	1.8	4.2	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: High
6.1	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H	1.8	4.2	Microsoft Corporation
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: High

References for CVE-2021-26886

https://www.zerodayinitiative.com/advisories/ZDI-21-327/

ZDI-21-327 | Zero Day Initiative
Third Party Advisory;VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26886

CVE-2021-26886 - Security Update Guide - Microsoft - User Profile Service Denial of Service Vulnerability
Patch;Vendor Advisory

Jump to

Vulnerability Details : CVE-2021-26886

Products affected by CVE-2021-26886

Exploit prediction scoring system (EPSS) score for CVE-2021-26886

CVSS scores for CVE-2021-26886

References for CVE-2021-26886