VDE-2025-059

csafDEhelmholz_psirt

Helmholz: Multiple vulnerabilities in REX 100

view advisory published 2025-07-21

Multiple vulnerabilities in all REX 100 devices with firmware <= 2.3.2 that allow an attacker to gain full control over the device.

01

describes (8)

Related CVEs.

IDseverity exploitable
CVE-2025-41681US——
A high privileged remote attacker can gain persistent XSS via POST requests due to improper neutralization of special elements used to create dynamic content.
CVE-2025-41679UShigh7.5—
An unauthenticated remote attacker could exploit a buffer overflow vulnerability in the device causing a denial of service that affects only the network initializing wizard (Confto…
CVE-2025-41678UShigh7.2—
A high privileged remote attacker can alter the configuration database via POST requests due to improper neutralization of special elements used in a SQL statement.
CVE-2025-41677US——
A high privileged remote attacker can exhaust critical system resources by sending specifically crafted POST requests to the send-mail action in fast succession.
CVE-2025-41676US——
A high privileged remote attacker can exhaust critical system resources by sending specifically crafted POST requests to the send-sms action in fast succession.
CVE-2025-41675US——
A high privileged remote attacker can execute arbitrary system commands via GET requests in the cloud server communication script due to improper neutralization of special elements…
CVE-2025-41674US——
A high privileged remote attacker can execute arbitrary system commands via POST requests in the diagnostic action due to improper neutralization of special elements used in an OS…
CVE-2025-41673US——
A high privileged remote attacker can execute arbitrary system commands via POST requests in the send_sms action due to improper neutralization of special elements used in an OS co…
02

references

External citations — patches, advisories, analysis.

03

remediations (16)

  • MitigationFirmware <2.3.3 installed on REX 100

    As this is an authenticated exploit, you can mitigate it by making sure that no malicious actor can login to a vulnerable device.

  • MitigationFirmware <2.3.3 installed on REX 100

    As this is an authenticated exploit, you can mitigate it by making sure that no malicious actor can login to a vulnerable device.

  • MitigationFirmware <2.3.3 installed on REX 100

    As this is an authenticated exploit, you can mitigate it by making sure that no malicious actor can login to a vulnerable device.

  • MitigationFirmware <2.3.3 installed on REX 100

    As this is an authenticated exploit, you can mitigate it by making sure that no malicious actor can login to a vulnerable device.

  • MitigationFirmware <2.3.3 installed on REX 100

    As this is an authenticated exploit, you can mitigate it by making sure that no malicious actor can login to a vulnerable device.

  • MitigationFirmware <2.3.3 installed on REX 100

    As this is an authenticated exploit, you can mitigate it by making sure that no malicious actor can login to a vulnerable device.

  • MitigationFirmware <2.3.3 installed on REX 100

    As this is an authenticated exploit, you can mitigate it by making sure that no malicious actor can login to a vulnerable device.

  • MitigationFirmware <2.3.3 installed on REX 100

    Enable "Lock network configuration (Conftool)" in device configuration (enabled by default after device comes online for the first time).

  • FixedFirmware <2.3.3 installed on REX 100

    Update to latest version: 2.3.3

  • FixedFirmware <2.3.3 installed on REX 100

    Update to latest version: 2.3.3

  • FixedFirmware <2.3.3 installed on REX 100

    Update to latest version: 2.3.3

  • FixedFirmware <2.3.3 installed on REX 100

    Update to latest version: 2.3.3

  • FixedFirmware <2.3.3 installed on REX 100

    Update to latest version: 2.3.3

  • FixedFirmware <2.3.3 installed on REX 100

    Update to latest version: 2.3.3

  • FixedFirmware <2.3.3 installed on REX 100

    Update to latest version: 2.3.3

  • FixedFirmware <2.3.3 installed on REX 100

    Update to latest version: 2.3.3

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