CVE-2026-14952: Frauscher FDS102 unauthenticated file disclosure

CVE-2026-14952 · Severity: high · CVSS 7.5 · Published 2026-08-20

Frauscher FDS102 is a railway diagnostic system used to monitor signaling and track infrastructure. An unauthenticated attacker can download sensitive files including system backups and railway layout information directly over HTTP, exposing critical infrastructure data to unauthorized access.

Technologies: Frauscher Sensortechnik GmbH FDS102. Vendors: Frauscher Sensortechnik GmbH.

Quick answers

Is CVE-2026-14952 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-14952 being exploited in the wild.
How severe is CVE-2026-14952?
High severity, with a CVSS score of 7.5, published 20 August 2026.
Which products and versions are affected?
Frauscher Sensortechnik GmbH FDS102 2.0.0 to 2.13.3.
Is there a fix for CVE-2026-14952?
A patch was published on 2026: Fixed in FDS102 v2.14.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-14952 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-14952?
Check whether you run Frauscher Sensortechnik GmbH FDS102 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

The vulnerability is a missing authentication control (CWE-306) that allows unauthenticated HTTP requests to retrieve sensitive files from the FDS102 web server, including /FdsBackup.zip and files under /downloads/*. The web server fails to enforce authentication checks on these critical endpoints, allowing an unauthenticated remote attacker to access detailed railway signaling and track layout information over the network without requiring a valid session. No user interaction or special privileges are required; the attack is a simple HTTP GET request. Patches are available in FDS102 version 2.14.0 and later.

Affected products

  • Frauscher Sensortechnik GmbH FDS102 2.0.0 to 2.13.3

Timeline

  • 2026-08-20: disclosed
  • 2026-08-25: advisory
  • 2026: patched: Fixed in FDS102 v2.14.0

References

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