Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 84.1%; technical severity is CVSS 7.3.
Windows COM Aggregate Marshaler in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an elevation privilege vulnerability when an attacker runs a specially crafted application, aka "Windows COM Elevation of Privilege Vulnerability". This CVE ID is unique from CVE-2017-0214.
Who should care
- Teams operating Windows, Windows 10 1507, Windows 10 1511 +8 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Windows, Windows 10 1507, Windows 10 1511 +8 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- CWE
- Not classified
- Affected versions
- Microsoft Windows; Microsoft Windows 10 1507 (Version: -); Microsoft Windows 10 1511 (Version: -); Microsoft Windows 10 1607 (Version: -); Microsoft Windows 10 1703 (Version: -); Microsoft Windows 7 (Version: -); Microsoft Windows 8.1 (Version: -); Microsoft Windows Rt 8.1 (Version: -)
- Published
- 12 May 2017
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 84.1%
- Signal calculated at 84