Configuration overwrite via web-interface race condition
Published Jun 10, 2025 · Updated Jan 13, 2026
A race condition in Siemens SINEC OS switch web interfaces before 3.2 allows remote authenticated users to load attacker-controlled configurations. During Load Configuration from Local PC, unsynchronized competing activity can replace the administrator-selected configuration with attacker-controlled data. Exploitation requires valid access, a legitimate administrator to invoke the function, and success in the race; the resulting impact is unauthorized configuration modification.
Summary
What happened
A race condition in Siemens SINEC OS switch web interfaces before 3.2 allows remote authenticated users to load attacker-controlled configurations. During Load Configuration from Local PC, unsynchronized competing activity can replace the administrator-selected configuration with attacker-controlled data. Exploitation requires valid access, a legitimate administrator to invoke the function, and success in the race; the resulting impact is unauthorized configuration modification.
The record
- CVE
- CVE-2025-40569
- Published
- Jun 10, 2025
- Updated
- Jan 13, 2026
- Vendor
- Siemens
- Product
- SCALANCE XRM334 (24 V DC, 12xFO)
- Classifications
- CWE-362, T1565.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 10, 2025CVE publishedPublication date reported by the CVE source.
- Jan 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <V3.2
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo