CVE-2026-33862: Siemens Teamcenter stored cross-site scripting

CVE-2026-33862 · Severity: high · CVSS 7.3 · Published 2026-05-12

Siemens Teamcenter, a product lifecycle management (PLM) system used to manage industrial design and manufacturing data, is vulnerable to a security flaw where it fails to properly clean user-provided information. An attacker with basic user access could inject malicious scripts into the system that execute when other users view specific pages. This could lead to the theft of sensitive session information or unauthorized actions being performed on behalf of legitimate users, potentially compromising intellectual property or operational data.

Technologies: Siemens Teamcenter. Vendors: Siemens.

Quick answers

Is CVE-2026-33862 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-33862 being exploited in the wild.
How severe is CVE-2026-33862?
High severity, with a CVSS score of 7.3, published 12 May 2026.
Which products and versions are affected?
Siemens Teamcenter < 2312.0014, All versions < V2312.0014, V2312 < V2312.0014, V2406 < V2406.0012, V2412 < V2412.0009, V2506 < V2506.0005.
Is there a fix for CVE-2026-33862?
A patch was published on 2026-05-12. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-33862 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-33862?
Check whether you run Siemens Teamcenter at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored cross-site scripting (XSS) vulnerability exists in multiple versions of Siemens Teamcenter (CWE-79). The root cause is the application's failure to properly encode or filter user-supplied data before it is rendered in web pages. An attacker with low-privileged network access can inject malicious scripts into the application. When other users navigate to the affected page, the script executes in their browser context. This can be used to steal session tokens, perform actions on behalf of the victim, or exfiltrate sensitive PLM data. Siemens has released patches for versions V2312, V2406, V2412, and V2506 to address this issue.

Affected products

  • Siemens Teamcenter V2312 < V2312.0014, V2406 < V2406.0012, V2412 < V2412.0009, V2506 < V2506.0005

Identifiers

  • CVE-2026-33862
  • CVE-2026-33893
  • CVE-2024-4367

Timeline

  • 2026-05-12: disclosed
  • 2026-05-12: advisory
  • 2026-05-12: patched

References

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