CVE-2026-43839
Deferred Deferred - Pending Action

NULL Pointer Dereference in Logs Management Service

Publication date: 2026-10-20

Last updated on: 2026-10-20

Assigner: CSA

Description
A NULL pointer dereference vulnerability in the logs management functionality could allow an unauthenticated attacker to crash the service.

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Meta Information

Published
2026-10-20
Last Modified
2026-10-20
Generated
2026-11-09
AI Q&A
2026-10-20
EPSS Evaluated
2026-11-08
NVD
CVE-2026-43839
EUVD
EUVD-2026-104839

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.

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Executive Summary

This vulnerability is a NULL pointer dereference in the logs management functionality. It allows an unauthenticated attacker to crash the service by exploiting this flaw.

Detection Guidance

Detecting this vulnerability requires monitoring for service crashes or logs indicating NULL pointer dereference errors in the logs management functionality. Check system logs for segmentation faults or service failures related to the affected component. Use commands like 'journalctl -u <service-name> --no-pager' or 'dmesg | grep -i segfault' to identify crashes.

Impact Analysis

An attacker could exploit this to cause a denial of service, making the affected service unavailable. This could disrupt operations relying on the service.

Compliance Impact

This vulnerability could impact compliance with GDPR and HIPAA by potentially causing service disruptions due to crashes, which may lead to data processing interruptions or loss of availability. However, the specific compliance impact depends on the system's role in handling personal or health data.

Mitigation Strategies

Apply the latest security patches or updates from the vendor for the affected service. If patches are unavailable, consider disabling the logs management functionality temporarily or restricting network access to the service until a fix is deployed.

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