Vulnerability · Published Jan 10, 2023 · Assigned by microsoft
CVE-2023-21764Microsoft Exchange Server Elevation of Privilege Vulnerability
High 7.8
In plain English
A high-severity security flaw in Microsoft Exchange Server 2016 Cumulative Update 23 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.6%top 51.9% 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 2019 Cumulative Update 11 | 15.02.0 – before 15.02.0986.037 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 12 | 15.02.0 – before 15.02.1118.021 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | 15.01.0 – before 15.01.2507.017 |
Weakness: CWE-426 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Microsoft Exchange Server Elevation of Privilege Vulnerability vendor-advisory