Cross-site request forgery in Siemens COMOS V10.2
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-352.
Summary
A vulnerability has been identified in COMOS V10.2 (All versions only if web components are used), COMOS V10.3 (All versions < V10.3.3.3 only if web components are used), COMOS V10.4 (All versions < V10.4.1 only if web components are used). The COMOS Web component of COMOS uses a flawed implementation of CSRF prevention. An attacker could exploit this vulnerability to perform cross-site request forgery attacks.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Siemens | COMOS V10.2 | All versions only if web components are used | — | No fix listed | CNA |
| Siemens | COMOS V10.3 | All versions < V10.3.3.3 only if web components are used | — | No fix listed | CNA |
| Siemens | COMOS V10.4 | All versions < V10.4.1 only if web components are used | — | No fix listed | CNA |
- COMOS V10.2 VendorSiemens Affected All versions only if web components are used Fixed in — No fix listed CNA
- COMOS V10.3 VendorSiemens Affected All versions < V10.3.3.3 only if web components are used Fixed in — No fix listed CNA
- COMOS V10.4 VendorSiemens Affected All versions < V10.4.1 only if web components are used Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-37198
- 2026-10-03 Alias added: GHSA-4348-cfw6-3v28
References
More Siemens Comos vulnerabilities
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
- TI-2021-20393 Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack KEVCVSS 3.1CRITICAL 9.0
- TI-2023-23262 Improper access control in Siemens COMOS CVSS 3.1CRITICAL 9.6
- TI-2023-10103 Buffer overflow in Siemens COMOS V10.2 CVSS 3.1CRITICAL 10.0
- TI-2023-23261 Buffer overflow in Siemens COMOS CVSS 3.1CRITICAL 9.8
- TI-2023-25103 Improper access control in Siemens COMOS CVSS 3.1CRITICAL 9.6
Sources
- CVE-2021-37198 · CVE Program
- CVE-2021-37198 · NVD
- FIRST EPSS
- GHSA-4348-cfw6-3v28 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences