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attackerkbAttackerKBAKB:F7CCD0B7-220B-49E5-A4DF-27E26B64A3F0
HistorySep 15, 2021 - 12:00 a.m.

CVE-2021-40444

2021-09-1500:00:00
attackerkb.com
686

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.971 High

EPSS

Percentile

99.7%

Microsoft MSHTML Remote Code Execution Vulnerability

Recent assessments:

JunquerGJ at September 07, 2021 10:50pm UTC reported:

  • Vulnerable if default behaviour has been changed ( By default, Microsoft Office opens documents from the internet in Protected View or Application Guard for Office both of which prevent the current attack )

  • Requires social engineering to be exploited

  • Workaround easy to deploy

ccondon-r7 at September 07, 2021 7:12pm UTC reported:

  • Vulnerable if default behaviour has been changed ( By default, Microsoft Office opens documents from the internet in Protected View or Application Guard for Office both of which prevent the current attack )

  • Requires social engineering to be exploited

  • Workaround easy to deploy

nu11secur1ty at September 22, 2021 4:28pm UTC reported:

  • Vulnerable if default behaviour has been changed ( By default, Microsoft Office opens documents from the internet in Protected View or Application Guard for Office both of which prevent the current attack )

  • Requires social engineering to be exploited

  • Workaround easy to deploy

NinjaOperator at September 07, 2021 6:45pm UTC reported:

  • Vulnerable if default behaviour has been changed ( By default, Microsoft Office opens documents from the internet in Protected View or Application Guard for Office both of which prevent the current attack )

  • Requires social engineering to be exploited

  • Workaround easy to deploy

Assessed Attacker Value: 3
Assessed Attacker Value: 3Assessed Attacker Value: 2

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.971 High

EPSS

Percentile

99.7%