CVE-2021-26862

CVSS V2 High 7.2 CVSS V3 High 7.8
Description
Windows Installer Elevation of Privilege Vulnerability
Overview
  • CVE ID
  • CVE-2021-26862
  • Assigner
  • secure@microsoft.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-03-11T16:15:14
  • Last Modified Date
  • 2022-05-03T16:04:40
Weakness Enumerations
CWE URL
CWE-59 http://cwe.mitre.org/data/definitions/59.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* 1 OR
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.2
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26862 Patch Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-285/ Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-26862
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26862
History
Created Old Value New Value Data Type Notes
2022-05-08 06:19:36 Added to TrackCVE
2022-12-05 23:33:23 2021-03-11T16:15Z 2021-03-11T16:15:14 CVE Published Date updated
2022-12-05 23:33:23 2022-05-03T16:04:40 CVE Modified Date updated
2022-12-05 23:33:23 Analyzed Vulnerability Status updated