Vulnerability record
CVE-2026-109097
The short answer
CVE-2026-109097 affects Siemens ROS# and is rated high (CVSS 8.6). It is not in CISA's Known Exploited Vulnerabilities catalog.
What it is
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.
Weakness: CWE-94.
Severity
8.6 high
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Exploited (CISA KEV)
Not listed
CISA lists confirmed exploitation only
EPSS, next 30 days
No score
FIRST scores CVEs within a day of publication
How it can be exploited
- Attack vector
- Local
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- Low
- User interaction
- Active
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Affected products
ROS#. NVD's record lists the exact affected versions.
References
Questions
Is CVE-2026-109097 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog as of 2026-11-10.
How do I fix CVE-2026-109097?
Follow the vendor advisory in the references below. NVD lists the affected versions under its configurations.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Received. The description is NVD's text, quoted as published.
Related
Know the day a CVE lands in your code
Connect a GitHub repository and ZeusQA checks its dependencies daily, briefs each advisory and opens the fix. Three test runs free, no card.