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attackerkbAttackerKBAKB:19A3B42A-68BD-48E1-847B-9BA88408EF2B
HistoryJun 08, 2021 - 12:00 a.m.

CVE-2021-33742

2021-06-0800:00:00
attackerkb.com
112
windows mshtml platform
remote code execution
exploitation
drive-by download
exploit kits
phishing links

CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.7

Confidence

High

EPSS

0.423

Percentile

97.4%

Windows MSHTML Platform Remote Code Execution Vulnerability

Recent assessments:

NinjaOperator at June 16, 2021 10:56pm UTC reported:

Windows MSHTML Platform (Microsoft proprietary browser engine) enables RCE and is being actively exploited in limited campaigns.
 Exploitation requires user interaction; thus, feasible threat scenarios include drive-by download, exploit kits, and phishing links.
 A commercial exploit company reportedly provided the exploit code to Eastern European and Middle Eastern state-sponsored actors

gwillcox-r7 at June 17, 2021 5:25pm UTC reported:

Windows MSHTML Platform (Microsoft proprietary browser engine) enables RCE and is being actively exploited in limited campaigns.
 Exploitation requires user interaction; thus, feasible threat scenarios include drive-by download, exploit kits, and phishing links.
 A commercial exploit company reportedly provided the exploit code to Eastern European and Middle Eastern state-sponsored actors

Assessed Attacker Value: 0
Assessed Attacker Value: 0Assessed Attacker Value: 0

CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.7

Confidence

High

EPSS

0.423

Percentile

97.4%