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PRIOn knowledge basePRION:CVE-2021-26862

HistoryMar 11, 2021 - 4:15 p.m.

Privilege escalation

2021-03-1116:15:00

PRIOn knowledge base

www.prio-n.com

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

7.7 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

30.0%

JSON

Windows Installer Elevation of Privilege Vulnerability

CPENameOperatorVersion
windows_10eq1607
windows_10eq1803
windows_10eq1809
windows_10eq1909
windows_10eq2004
windows_10eq20.0.0-h2
windows_7eq- sp1
windows_server_2008eqr2 sp1
windows_server_2008eq- sp2
windows_server_2012eq2.0.114

Name	Operator	Version
windows_10	eq	1607
windows_10	eq	1803
windows_10	eq	1809
windows_10	eq	1909
windows_10	eq	2004
windows_10	eq	20.0.0-h2
windows_7	eq	- sp1
windows_server_2008	eq	r2 sp1
windows_server_2008	eq	- sp2
windows_server_2012	eq	2.0.114

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References

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26862

www.zerodayinitiative.com/advisories/ZDI-21-285/

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

7.7 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

30.0%

JSON

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