Vulnerability · Published Jul 14, 2021 · Assigned by microsoft
CVE-2021-33768Microsoft Exchange Server Elevation of Privilege Vulnerability
High 8.0
In plain English
A high-severity security flaw in Microsoft Exchange Server 2016 Cumulative Update 20 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)1.2%top 30.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Microsoft Exchange Server Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 20 | 15.01.0 – before 15.01.2242.012 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 21 | 15.01.0 – before 15.01.2308.014 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 10 | 15.02.0 – before 15.02.0922.013 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 | 15.02.0 – before 15.02.0858.015 |
References
- Microsoft Exchange Server Elevation of Privilege Vulnerability vendor-advisory, patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33768 x_refsource_MISC, x_transferred