Cross-site request forgery in Siemens SIMATIC S7-1200 CPU family version 4
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-352.
Summary
A vulnerability has been identified in SIMATIC S7-1200 CPU family version 4 (All versions < V4.2.3). The web interface could allow a Cross-Site Request Forgery (CSRF) attack if an unsuspecting user is tricked into accessing a malicious link. Successful exploitation requires user interaction by a legitimate user, who must be authenticated to the web interface. A successful attack could allow an attacker to trigger actions via the web interface that the legitimate user is allowed to perform. This could allow the attacker to read or modify parts of the device configuration.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Siemens | SIMATIC S7-1200 CPU family version 4 | before V4.2.3 | V4.2.3 | Patch available | CNA |
- SIMATIC S7-1200 CPU family version 4 VendorSiemens Affected before V4.2.3 Fixed in V4.2.3 Patch available CNA
Remediation
- Fix · CNA SIMATIC S7-1200 CPU family version 4 (Siemens AG) Fixed in V4.2.3
Timeline
- 2026-10-02 Threatist record created from CVE-2018-13800
- 2026-10-03 Alias added: GHSA-h794-q9mp-rjc7
- 2026-10-31 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2018-13800 · CVE Program
- CVE-2018-13800 · NVD
- FIRST EPSS
- GHSA-h794-q9mp-rjc7 · GitHub Advisory Database · CC BY 4.0
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