CVE-2026-43840
Received Received - Intake

NULL Pointer Dereference in License Manager Service

Publication date: 2026-10-20

Last updated on: 2026-10-20

Assigner: CSA

Description
A NULL pointer dereference vulnerability in the license manager service could allow an unauthenticated attacker to crash the service via the on_disconnected callback function.

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Meta Information

Published
2026-10-20
Last Modified
2026-10-20
Generated
2026-10-20
AI Q&A
2026-10-20
EPSS Evaluated
N/A
NVD
CVE-2026-43840
EUVD
EUVD-2026-104840

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Advantech ADAM-3600 prior to version 2.8.5.0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a NULL pointer dereference vulnerability in the license manager service. An unauthenticated attacker can exploit it by triggering the on_disconnected callback function, causing the service to crash.

Impact Analysis

The service crash could lead to denial of service, disrupting operations that rely on the license manager. If the service is critical, this may cause downtime or loss of functionality.

Mitigation Strategies

Apply vendor patches or updates for the license manager service to address the NULL pointer dereference issue. Monitor service logs for crashes or unexpected disconnections. Restrict network access to the service if possible.

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