Arbitrary file read and write via path traversal
Published May 12, 2026 · Updated May 12, 2026
Path traversal in Siemens ROS# file_server before 2.2.2 allows remote attackers to read and write arbitrary files through ROS services. The service accepts attacker-controlled paths without rejecting dot segments or verifying that canonical targets remain inside the package share directory. Unauthenticated network access to the service is sufficient, and file access is limited to the permissions of its operating-system account.
Summary
What happened
Path traversal in Siemens ROS# file_server before 2.2.2 allows remote attackers to read and write arbitrary files through ROS services. The service accepts attacker-controlled paths without rejecting dot segments or verifying that canonical targets remain inside the package share directory. Unauthenticated network access to the service is sufficient, and file access is limited to the permissions of its operating-system account.
The record
- CVE
- CVE-2026-41551
- Published
- May 12, 2026
- Updated
- May 12, 2026
- Vendor
- Siemens
- Product
- ROS#
- Classifications
- CWE-23, CAPEC-76, CAPEC-139, T1005, T1565.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 12, 2026CVE publishedPublication date reported by the CVE source.
- May 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <V2.2.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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