8.8
CWE
287
Advisory Published
Updated

CVE-2023-25556

First published: Tue Apr 18 2023(Updated: )

A CWE-287: Improper Authentication vulnerability exists that could allow a device to be compromised when a key of less than seven digits is entered and the attacker has access to the KNX installation.

Credit: cybersecurity@se.com

Affected SoftwareAffected VersionHow to fix
Schneider-electric Merten Instabus Tastermodul 1fach System M=1.0
Schneider-electric Merten Instabus Tastermodul 1fach System M Firmware
Schneider-electric Merten Instabus Tastermodul 2fach System M=1.0
Schneider-electric Merten Instabus Tastermodul 2fach System M Firmware
Schneider-electric Merten Tasterschnittstelle 4fach Plus Firmware=1.0
Schneider-electric Merten Tasterschnittstelle 4fach Plus Firmware=1.2
Schneider-electric Merten Tasterschnittstelle 4fach Plus
Schneider-electric Merten Knx Argus 180/2,20m Up System Firmware=1.0
Schneider-electric Merten Knx Argus 180/2,20m Up System
Schneider-electric Merten Jalousie-geschaltaktor Reg-k/8x/16x/10 M. Hb=1.0
Schneider-electric Merten Jalousie-geschaltaktor Reg-k/8x/16x/10 M. Hb
Schneider-electric Merten Knx Uni-dimmaktor Ll Reg-k\/2x230\/300 W Firmware=1.0
Schneider-electric Merten Knx Uni-dimmaktor Ll Reg-k\/2x230\/300 W Firmware=1.1
Schneider-electric Merten Knx Uni-dimmaktor Ll Reg-k\/2x230\/300 W
Schneider Electric Merten KNX Schaltaktor 2x6A UP M.2 Eing.=0.1
Schneider Electric Merten KNX Schaltaktor 2x6A UP M.2 Eing.

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Frequently Asked Questions

  • What is the vulnerability ID of this security notice?

    The vulnerability ID of this security notice is CVE-2023-25556.

  • What is the severity of CVE-2023-25556?

    The severity of CVE-2023-25556 is rated as high with a severity value of 8.8.

  • What is the CWE ID associated with CVE-2023-25556?

    The CWE ID associated with CVE-2023-25556 is CWE-287: Improper Authentication.

  • Which software versions are affected by CVE-2023-25556?

    The affected software versions are Schneider Electric Merten Instabus Tastermodul 1-fach System M Firmware 1.0, Schneider Electric Merten Instabus Tastermodul 2-fach System M Firmware 1.0, Schneider Electric Merten Tasterschnittstelle 4-fach Plus Firmware 1.0 and 1.2, and Schneider Electric Merten KNX Argus 180/2,20m UP System Firmware 1.0.

  • How can CVE-2023-25556 be exploited?

    CVE-2023-25556 can be exploited when a key of less than seven digits is entered and the attacker has access to the KNX installation.

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