Actively exploited · Published Nov 9, 2022 · Assigned by microsoft
CVE-2022-41080Microsoft Exchange Server Elevation of Privilege Vulnerability
High 8.8 Exploited Ransomware
In plain English
A high-severity security flaw in Microsoft Exchange Server 2013 Cumulative Update 23 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on January 10, 2023). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 77.3% (higher than 99.6% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply updates per vendor instructions.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)77.3%top 0.4% of all CVEs
Exploited in the wildYesCISA KEV since Jan 10, 2023
Attack tooling1Public PoC
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Jan 31, 2023.
Official description
Microsoft Exchange Server Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 | 15.00.0 – before 15.00.1497.044 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 22 | 15.0.0 – before 15.01.2375.037 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | 15.01.0 – before 15.01.2507.016 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 11 | 15.02.0 – before 15.02.0986.036 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 12 | 15.02.0 – before 15.02.1118.020 |
References
- Microsoft Exchange Server Elevation of Privilege Vulnerability vendor-advisory, patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41080 government-resource