CVE-2018-8581
HIGH severity · CVSS 7.4 · actively exploited (CISA KEV)
7.4CVSS HIGH ● exploited ⚠ ransomware
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
⚠ Known use in ransomware campaigns. Added to KEV 2022-03-03. US federal agencies must patch by 2022-03-17.
Summary
An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)92%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Official patch: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8581 ↗
Additional information
- NVD record
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8581Patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8581Patch
- http://www.securityfocus.com/bid/105837Advisory
- http://www.securitytracker.com/id/1042141Advisory
- http://www.securityfocus.com/bid/105837Advisory
- http://www.securitytracker.com/id/1042141Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8581