CVE-2017-0101VulnerabilityPublished 03/15/2022Updated 10/24/2026

CVE-2017-0101: Microsoft Windows Transaction Manager Privilege Escalation Vulnerability

Affects Microsoft WindowsSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 03/15/2022
KEV deadline: 04/05/2022
Ransomware: Used in ransomware campaigns
EPSS: 57.5% 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-2017-0101 (opens in a new tab)

Description

CVE-2017-0101 is a privilege escalation vulnerability in Microsoft Windows Transaction Manager caused by improper handling of objects in memory. This flaw allows attackers to elevate privileges on affected systems. It has been exploited in the wild and is known to be used in ransomware campaigns.

Summary

The vulnerability CVE-2017-0101 affects Microsoft Windows and arises from improper memory object handling by the Windows Transaction Manager. This security flaw enables privilege escalation, allowing attackers to gain higher-level access than intended. The vulnerability has been actively exploited in the wild and has been associated with ransomware attacks.

Impact

Successful exploitation of this vulnerability allows an attacker to escalate privileges on a Windows system, potentially leading to full system compromise or facilitating further malicious activity such as ransomware deployment.

Mitigation

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

Weaknesses

CWE-119Buffer Errors (Memory Bounds) (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 10:42:16 UTC

Weaknesses

References

Related threats