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CVE-2026-109097

8.2, high

Siemens ROS# Code Injection Vulnerability

CVSS
8.2, high high CVSS v3.1
EPSS, next 30 days
n/a
Exploitation
No public evidence
Published
10 Nov 2026yesterday

Description

A vulnerability has been identified in ROS# (All versions < V2.3.1). Affected systems do not properly escape text of message definition files. This could allow an attacker that is able to pass a crafted message definition file to the user to inject arbitrary code into the generated program.

Details

Vendor
Siemens
Product
ROS#
Weakness
CWE-94 (opens in a new tab)
Status
Received
Updated
10 Nov 2026
Assigner
productcert@siemens.com

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

References 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Siemens CVEs

Every Siemens CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-110936 Siemens Software Center Uncontrolled Search Path Element Vulnerability KEV EPSS 1% 6.7, medium
  • CVE-2016-8562 Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability KEV EPSS 4% 7.5, high
  • CVE-2026-59082 A vulnerability has been identified in SIMATIC WinCC V7.5 (All versions), SIMATIC WinCC V8.0 (All versions), SIMATIC WinCC V8.1 (All… 7.8, high
  • CVE-2026-44415 Affected systems do not properly restrict access to internal APIs and paths for authenticated users EPSS 0.5% 9.1, critical
  • CVE-2026-63353 Siemens SIMATIC Drive Controller CPU 1504D TF Cross-Site Scripting Vulnerability EPSS 0.3% 9.6, critical
  • CVE-2026-63354 Siemens SIMATIC Drive Controller CPU 1504D TF Cross-Site Scripting Vulnerability EPSS 0.3% 9.6, critical
  • CVE-2026-102073 Siemens APOGEE MBC (PPC) (BACnet) Integer Underflow Vulnerability EPSS 0.3% 8.2, high
  • CVE-2026-59241 A vulnerability has been identified in SIMATIC WinCC V7.5 (All versions), SIMATIC WinCC V8.0 (All versions < V8.0 Update 11), SIMATIC… EPSS 0.3% 8.8, high

Beyond this page

Is CVE-2026-109097 in your network?

This page tells you how dangerous CVE-2026-109097 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-109097 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT
  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 11 Nov 2026, not the live upstream state.