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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00274.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Advantech ADAM-3600 unaffected
Version Status Constraints
prior to version 2.8.5.0 affected —

No data.

No data.

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Vendors Products
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Adam-3600 Subscribe

Project Subscriptions

Vendors Products
Advantech Subscribe
Adam-3600 Subscribe
Advisories

No advisories yet.

Fixes

Solution

Advantech has released a security update to address these vulnerabilities. Users and administrators of affected product versions are advised to update to the latest version immediately.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.advantech.com/en/security-advisory cve-icon cve-icon
https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-149 cve-icon cve-icon
History

Tue, 20 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 20 Oct 2026 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Advantech
Advantech adam-3600
Vendors & Products Advantech
Advantech adam-3600

Tue, 20 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
Title Null Pointer Dereference Causing Service Crash in Advantech ADAM-3600 License Manager
Weaknesses CWE-476

Tue, 20 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
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.
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CSA

Published:

Updated: 2026-10-20T18:08:00.900Z

Reserved: 2026-05-04T03:13:39.244Z

Link: CVE-2026-43840

cve-icon Vulnrichment

Updated: 2026-10-20T18:07:41.774Z

cve-icon NVD

Status : Deferred

Published: 2026-10-20T09:17:10.383

Modified: 2026-10-20T19:30:59.910

Link: CVE-2026-43840

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-20T16:00:14Z

Weaknesses