Severity: ElevatedAction: Be aware

Siemens WTV676 and WTV776

View CSAF Summary The products listed below contain a denial of service vulnerability that could allow an attacker to force the devices into protection mode under certain conditions. This disables remote connectivity functions (Web Access) to the devices. Siemens has released new versions for the affected products and recommends to update to the latest versions. The following versions of Siemens WTV676 and WTV776…

Excerpt from the primary source: CISA Cybersecurity Advisories

Who is affected

Critical infrastructure

What you should do · Be aware

No immediate action is indicated. Share this with the relevant teams and watch for updates.

Automated guidance based on this story's classification. Check the linked advisories for specifics.

Sources

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Government advisory

Siemens WTV676 and WTV776 CISA Cybersecurity Advisories · cisa.gov · Sep 22, 2026 · Primary source
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