Vulnerability in Microsoft Exchange Server
CVE-2018-8581
An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
EPSS: 0.918 (99.7th percentile) — read the EPSS interpretation.
Affected products
- Microsoft Exchange Server — versions 2010, 2013, 2016
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- 1042141 (vdb-entry, x_refsource_SECTRACK)
- 105837 (vdb-entry, x_refsource_BID)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8581 (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2018-8581?
- CVE-2018-8581 is a vulnerability in Microsoft Exchange Server. Published 2018-11-14.
- Is CVE-2018-8581 known to be exploited?
- Yes. CVE-2018-8581 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 78 public proof-of-concept repositories are indexed.