Vulnerability Details : CVE-2021-34470
Microsoft Exchange Server Elevation of Privilege Vulnerability
Vulnerability category: Gain privilege
Products affected by CVE-2021-34470
- cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_21:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_10:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-34470
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-34470
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.2
|
MEDIUM | AV:A/AC:L/Au:S/C:P/I:P/A:P |
5.1
|
6.4
|
NIST | |
|
8.0
|
HIGH | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.1
|
5.9
|
NIST | |
|
8.0
|
HIGH | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.1
|
5.9
|
Microsoft Corporation |
References for CVE-2021-34470
-
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34470
CVE-2021-34470 - Security Update Guide - Microsoft - Microsoft Exchange Server Elevation of Privilege VulnerabilityPatch;Vendor Advisory
-
http://packetstormsecurity.com/files/163706/Microsoft-Exchange-AD-Schema-Misconfiguration-Privilege-Escalation.html
Microsoft Exchange AD Schema Misconfiguration Privilege Escalation ≈ Packet StormThird Party Advisory;VDB Entry
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