CVE-2019-12254Network attack vector

Unauthenticated configuration takeover via exposed settings endpoint

Published May 6, 2022 · Updated Sep 16, 2024

Authentication bypass in TECSON and GOK tank monitors before firmware 6.32 or 6.3 allows remote attackers to alter device settings. The web server exposes a settings-save endpoint without enforcing its access-control rules, so unauthenticated requests write configuration values. Network access is sufficient to take over the web configuration, including passwords, alert parameters, and output states.

CVSS severity9.8
Critical
EPSS probability1.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in TECSON and GOK tank monitors before firmware 6.32 or 6.3 allows remote attackers to alter device settings. The web server exposes a settings-save endpoint without enforcing its access-control rules, so unauthenticated requests write configuration values. Network access is sufficient to take over the web configuration, including passwords, alert parameters, and output states.

The record

CVE
CVE-2019-12254
Published
May 6, 2022
Updated
Sep 16, 2024
Vendor
TECSON GmbH & Co. KG
Product
LX-Q-NET
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <V6.32

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TECSON GmbH & Co. KG · LX-Q-NETversion=unspecified <V6.32
TECSON GmbH & Co. KG · LX-NETversion=unspecified <V6.32
GOK Regler- und Armaturen-Gesellschaft mbH & Co. KG · SmartBox 4 LANversion=unspecified <V6.3
GOK Regler- und Armaturen-Gesellschaft mbH & Co. KG · SmartBox 4 LAN PROversion=unspecified <V6.3
TECSON GmbH & Co. KG · e-litro netversion=unspecified <V6.32

Published CVSS scores

9.8CERT@VDECVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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