CVE-2026-8797
Deferred Deferred - Pending Action

Privilege Escalation in ExpressUpdate Agent for Windows

Publication date: 2026-06-26

Last updated on: 2026-06-26

Assigner: NEC Corporation

Description
An access control deficiency vulnerability exists in ExpressUpdate Agent for Windows. If a malicious user gains access to the product, arbitrary code could be executed with SYSTEM privileges.

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Meta Information

Published
2026-06-26
Last Modified
2026-06-26
Generated
2026-07-16
AI Q&A
2026-06-26
EPSS Evaluated
2026-07-15
NVD
CVE-2026-8797
EUVD
EUVD-2026-39623

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
nec expressupdate_agent to 3.25 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-782 The product implements an IOCTL with functionality that should be restricted, but it does not properly enforce access control for the IOCTL.

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Executive Summary

CVE-2026-8797 is an access control deficiency vulnerability found in the ExpressUpdate Agent for Windows. This vulnerability allows a malicious user who gains access to the product to execute arbitrary code with SYSTEM privileges.

Impact Analysis

If exploited, this vulnerability can allow an attacker to run arbitrary code on the affected system with SYSTEM-level privileges, which is the highest level of access on a Windows system. This could lead to full control over the system, including installing malware, stealing data, or disrupting system operations.

Mitigation Strategies

To mitigate this vulnerability, you should update the ExpressUpdate Agent for Windows to version 3.25 or later.

This update addresses the access control deficiency that could allow arbitrary code execution with SYSTEM privileges.

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