CVE-2017-0213VulnerabilityPublished 03/28/2022Updated 10/24/2026

CVE-2017-0213: Microsoft Windows Privilege Escalation Vulnerability

Affects Microsoft WindowsSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 03/28/2022
KEV deadline: 04/18/2022
Ransomware: Used in ransomware campaigns
EPSS: 84.3% chance of exploitation in 30 days – higher than 99% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2017-0213 (opens in a new tab)

Description

CVE-2017-0213 is a privilege escalation vulnerability in Microsoft Windows COM Aggregate Marshaler. It allows an attacker to escalate privileges by running a specially crafted application. This vulnerability has been exploited in the wild and is known to have been used in ransomware campaigns.

Summary

The Microsoft Windows COM Aggregate Marshaler contains a privilege escalation vulnerability identified as CVE-2017-0213. An attacker can exploit this flaw by executing a specially crafted application, which results in elevated privileges on the affected system. This vulnerability has been observed in active exploitation scenarios, including ransomware campaigns.

Impact

Successful exploitation of this vulnerability enables an attacker to gain elevated privileges on a Windows system, potentially allowing them to execute arbitrary code with higher permissions. This can facilitate further compromise, persistence, or deployment of ransomware.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 11:12:02 UTC

References

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