ICSA-26-111-07 · Published 2026-04-14 · View on CISA ICS-CERT ↗

Siemens SCALANCE

CVSS 9.1 CRITICAL

Risk Summary

SCALANCE W-700 IEEE 802.11n family before V6.6.0 are affected by multiple vulnerabilities. Siemens has released a new version for SCALANCE W-700 IEEE 802.11n family and recommends to update to the latest version.

CVEs (15)

CVE-2020-24588 CVE-2020-26139 CVE-2020-26140 CVE-2020-26141 CVE-2020-26143 CVE-2020-26144 CVE-2020-26146 CVE-2020-26147 CVE-2021-3712 CVE-2022-0778 CVE-2022-31765 CVE-2022-36323 CVE-2022-36324 CVE-2022-36325 CVE-2023-44373

Remediations

As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
Disable A-MSDU, if possible
Update to V6.6.0 or later version

Affected Vendors

Siemens

Affected Products (49)

Siemens · SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AC0) vers:intdot/<6.6.0

Siemens · SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA6) vers:intdot/<6.6.0

Siemens · SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W734-1 RJ45 (USA) (6GK5734-1FX00-0AB6) vers:intdot/<6.6.0

Siemens · SCALANCE W738-1 M12 (6GK5738-1GY00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W738-1 M12 (6GK5738-1GY00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W748-1 M12 (6GK5748-1GD00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W748-1 M12 (6GK5748-1GD00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TA0) vers:intdot/<6.6.0

Siemens · SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TB0) vers:intdot/<6.6.0

Siemens · SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA6) vers:intdot/<6.6.0

Siemens · SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AC0) vers:intdot/<6.6.0

Siemens · SCALANCE W774-1 RJ45 (USA) (6GK5774-1FX00-0AB6) vers:intdot/<6.6.0

Siemens · SCALANCE W778-1 M12 (6GK5778-1GY00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W778-1 M12 (6GK5778-1GY00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W778-1 M12 EEC (6GK5778-1GY00-0TA0) vers:intdot/<6.6.0

Siemens · SCALANCE W778-1 M12 EEC (USA) (6GK5778-1GY00-0TB0) vers:intdot/<6.6.0

Siemens · SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AC0) vers:intdot/<6.6.0

Siemens · SCALANCE W786-2 SFP (6GK5786-2FE00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W786-2 SFP (6GK5786-2FE00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-1 M12 (6GK5788-1GD00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-1 M12 (6GK5788-1GD00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-2 M12 (6GK5788-2GD00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-2 M12 (6GK5788-2GD00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TA0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TB0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TC0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AA0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AB0) vers:intdot/<6.6.0

Siemens · SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AC0) vers:intdot/<6.6.0

Affected Sectors

Communications, Information Technology, Critical Manufacturing

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