CVE-2026-8921

SYSTEM code execution via tampered IPC path

Published Jul 3, 2026 · Updated Jul 3, 2026

External control of file paths in ASUS Business Manager 3.0.38.0 and earlier allows local users to execute code as SYSTEM via tampered IPC. The Business Manager Service relies on client-side authentication while accepting a file path from an IPC message, allowing low-privileged code to direct a privileged file operation. Exploitation requires local low-privileged code execution and grants arbitrary code execution under the SYSTEM account.

CVSS severity7.8
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

External control of file paths in ASUS Business Manager 3.0.38.0 and earlier allows local users to execute code as SYSTEM via tampered IPC. The Business Manager Service relies on client-side authentication while accepting a file path from an IPC message, allowing low-privileged code to direct a privileged file operation. Exploitation requires local low-privileged code execution and grants arbitrary code execution under the SYSTEM account.

The record

CVE
CVE-2026-8921
Published
Jul 3, 2026
Updated
Jul 3, 2026
Vendor
ASUSTeK Computer Inc.
Product
ASUS Business Manager
Classifications
CWE-73, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=v3.0.38.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

ASUSTeK Computer Inc. · ASUS Business Managerversion=0 <=v3.0.38.0

Published CVSS scores

7.8TrendAI Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-73External Control of File Name or Path
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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