CVE-2026-50686

Analyzed Analyzed - Analysis Complete

Windows OLE Type Confusion Remote Code Execution

Publication date: 2026-07-14

Last updated on: 2026-07-23

Assigner: Microsoft Corporation

Description

Access of resource using incompatible type ('type confusion') in Windows OLE allows an unauthorized attacker to execute code over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-14

Last Modified

2026-07-23

Generated

2026-08-04

AI Q&A

2026-07-15

EPSS Evaluated

2026-08-02

NVD

CVE-2026-50686

EUVD

EUVD-2026-44144

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_10_1607	to 10.0.14393.9339 (exc)
microsoft	windows_10_1607	to 10.0.14393.9339 (exc)
microsoft	windows_10_1809	to 10.0.17763.9020 (exc)
microsoft	windows_10_1809	to 10.0.17763.9020 (exc)
microsoft	windows_server_2016	to 10.0.14393.9339 (exc)
microsoft	windows_server_2019	to 10.0.17763.9020 (exc)
microsoft	windows_server_2022	to 10.0.20348.5386 (exc)
microsoft	windows_server_2025	to 10.0.26100.33158 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2525 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7548 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7548 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8875 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8875 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-843	The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Attack-Flow Graph

Executive Summary

This vulnerability is a type confusion issue in Windows OLE (Object Linking and Embedding). It allows an unauthorized attacker to execute arbitrary code remotely over a network by exploiting mismatched data types in memory.

Detection Guidance

This vulnerability involves type confusion in Windows OLE, enabling remote code execution. Detection typically requires monitoring for unusual network activity or suspicious OLE object handling. Use tools like Windows Event Viewer to check for unexpected application crashes or system events related to OLE. Network monitoring tools can detect anomalous traffic patterns associated with exploitation attempts.

Impact Analysis

An attacker could exploit this to run malicious code on your system without authentication. This could lead to data theft, system compromise, or installation of malware if the attacker gains control of your device.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR (data protection) and HIPAA (health data privacy) requirements. Organizations may face fines or legal penalties if exploited due to inadequate security measures.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows OLE type confusion vulnerability. Monitor Microsoft's security advisories for patches and install them promptly.

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