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attackerkbAttackerKBAKB:223AC3BF-AD6E-4AEA-960A-DE258EE301A0
HistoryMay 11, 2021 - 12:00 a.m.

CVE-2021-31195

2021-05-1100:00:00
attackerkb.com
41

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/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

0.927 High

EPSS

Percentile

99.0%

Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-31198.

Recent assessments:

NinjaOperator at August 09, 2021 8:19pm UTC reported:

PoC is publicly available <https://blog.orange.tw/2021/08/proxyoracle-a-new-attack-surface-on-ms-exchange-part-2.html?m=1&gt;
Microsoft has already patched this vulnerabilities and exploitation has not been observed. However, threat actors could exploit these vulnerabilities by sending users an email to visit a malicious link and recover passwords in plaintext.

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

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/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

0.927 High

EPSS

Percentile

99.0%