CVE-2025-13406Network attack vectorHinoki check available

HTTP service interruption via Live List dereference

Published Mar 17, 2026 · Updated Mar 17, 2026

NULL pointer dereference in the Webserver module of Softing smartLink SW-HT 1.43 allows remote authenticated users to interrupt HTTP service. When a higher-revision HART device is scanned, the Live List dereferences a null pointer instead of handling the device revision safely. Reaching the condition requires high privileges, active user interaction, and a connected higher-revision HART device; the resulting outage recovers automatically.

CVSS severity6.8
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

NULL pointer dereference in the Webserver module of Softing smartLink SW-HT 1.43 allows remote authenticated users to interrupt HTTP service. When a higher-revision HART device is scanned, the Live List dereferences a null pointer instead of handling the device revision safely. Reaching the condition requires high privileges, active user interaction, and a connected higher-revision HART device; the resulting outage recovers automatically.

The record

CVE
CVE-2025-13406
Published
Mar 17, 2026
Updated
Mar 17, 2026
Vendor
Softing Industrial Automation GmbH
Product
smartLink SW-HT
Classifications
CWE-476, CAPEC-469, T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 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=1.43

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Softing Industrial Automation GmbH · smartLink SW-HTversion=1.43

Published CVSS scores

6.8SoftingCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA: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.

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No observations available

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

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
CAPEC-469HTTP DoS
T1499Endpoint Denial of Service

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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