VulnerabilityAnalyzed
CVE-2022-41080
Microsoft Exchange Server Privilege Escalation Vulnerability
KEVHIGH 8.8EPSS 77.3%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 31 January 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Microsoft Exchange Server Elevation of Privilege Vulnerability
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 77.33% probability · 100th percentile
- CISA KEV
- Listed 10 January 2023 · due 31 January 2023 · used in ransomware campaigns
- Affected
- microsoft/exchange server
- Source
- secure@microsoft.com
CISA notes
Apply updates per vendor instructions. https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-41080; https://nvd.nist.gov/vuln/detail/CVE-2022-41080
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41080Patch, Vendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41080Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41080US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.