medium severity September 15, 2026 · 1 min read

CISA ICS Advisory: Siemens Teamcenter

Here’s what this advisory affects, and what to do about it.

A reflected cross site scripting vulnerability in the authentication redirect flow (/auth/) of Teamcenter allows an unauthenticated remote attacker to inject JavaScript into an authenticated user's session by crafting a malicious URL. Successful exploitation may enable the attacker to read data or perform actions within the victim's Teamcenter session. Siemens has released new versions for the affected products and recommends to update to the latest versions. The following versions of Siemens Teamcenter are affected: Teamcenter V2412 vers:intdot/ Teamcenter V2506 vers:intdot/ Teamcenter V2512

Reflected XSS in authentication redirect

The advisory describes a reflected cross-site scripting flaw in the /auth/ endpoint of Siemens Teamcenter. An unauthenticated remote attacker can craft a malicious URL that injects JavaScript into an authenticated user’s session. Successful exploitation could allow the attacker to read data or perform actions within that Teamcenter session. The advisory does not state whether the vulnerability has been exploited in the wild.

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Affected products

The following versions are affected:

Teamcenter V2412
Teamcenter V2506
Teamcenter V2512

Siemens has released updated versions that address the issue and recommends that users update to the latest available releases.

What to do

Determine whether any Teamcenter V2412, V2506, or V2512 instances are in use in your environment.
Apply the latest Siemens updates for all affected Teamcenter deployments as soon as possible.
Until patching is complete, restrict access to the Teamcenter authentication endpoints to trusted networks and users where feasible.
Monitor Siemens’ official security channel for any additional guidance or revised versions.
Review and follow all mitigations listed in the CISA ICS advisory.

Organizations operating Siemens Teamcenter in industrial, engineering, or product-lifecycle environments should treat this update as high priority given the potential for session compromise through a crafted link.

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value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

Found in breach recordsverifiedreported — unverified

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unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

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GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Sources: CISA ICS Advisory

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