CVE-2026-79417Public exploit

System crash via raced driver handle and WRMSR

Published Sep 29, 2026 · Updated Sep 29, 2026

Denial of service in Argotronic eGbR Argus Monitor 7.4.02 and earlier allows local users to crash AMD Windows systems via a driver IOCTL. The IRP_MJ_CREATE check validates a stale process-image path after the executable is replaced, granting a driver handle; IOCTL 0x9C4024A8 then writes the AMD hardware configuration register to disable MONITOR and MWAIT instructions. Exploitation requires a low-privileged local account, an AMD CPU, and the affected driver; the documented Hyper-V path ends in a system bugcheck.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Argotronic eGbR Argus Monitor 7.4.02 and earlier allows local users to crash AMD Windows systems via a driver IOCTL. The IRP_MJ_CREATE check validates a stale process-image path after the executable is replaced, granting a driver handle; IOCTL 0x9C4024A8 then writes the AMD hardware configuration register to disable MONITOR and MWAIT instructions. Exploitation requires a low-privileged local account, an AMD CPU, and the affected driver; the documented Hyper-V path ends in a system bugcheck.

The record

CVE
CVE-2026-79417
Published
Sep 29, 2026
Updated
Sep 29, 2026
Vendor
Argotronic eGbR
Product
Argus Monitor
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 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?

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  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Argotronic eGbR · Argus Monitorversion=n/a

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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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