Vulnerability Description
A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All versions < 5.5.1), SCALANCE X202-2 IRT (All versions < 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions < 5.5.1), SCALANCE X202-2P IRT PRO (All versions < 5.5.1), SCALANCE X204 IRT (All versions < 5.5.1), SCALANCE X204 IRT PRO (All versions < 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2FM (All versions < V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2LD TS (All versions < V5.2.5), SCALANCE X204-2TS (All versions < V5.2.5), SCALANCE X206-1 (All versions < V5.2.5), SCALANCE X206-1LD (All versions < V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X208PRO (All versions < V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X212-2LD (All versions < V5.2.5), SCALANCE X216 (All versions < V5.2.5), SCALANCE X224 (All versions < V5.2.5), SCALANCE XF201-3P IRT (All versions < 5.5.1), SCALANCE XF202-2P IRT (All versions < 5.5.1), SCALANCE XF204 (All versions < V5.2.5), SCALANCE XF204 IRT (All versions < 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE XF204-2BA IRT (All versions < 5.5.1), SCALANCE XF206-1 (All versions < V5.2.5), SCALANCE XF208 (All versions < V5.2.5). Incorrect processing of POST requests in the webserver may result in write out of bounds in heap. An attacker might leverage this to cause denial-of-service on the device and potentially remotely execute code.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Scalance X200-4P Irt Firmware | < 5.5.1 |
| Siemens | Scalance X200-4P Irt | - |
| Siemens | Scalance X201-3P Irt Firmware | < 5.5.1 |
| Siemens | Scalance X201-3P Irt | - |
| Siemens | Scalance X201-3P Irt Pro Firmware | < 5.5.1 |
| Siemens | Scalance X201-3P Irt Pro | - |
| Siemens | Scalance X202-2 Irt Firmware | < 5.5.1 |
| Siemens | Scalance X202-2 Irt | - |
| Siemens | Scalance X202-2P Irt Pro Firmware | < 5.5.1 |
| Siemens | Scalance X202-2P Irt Pro | - |
| Siemens | Scalance X204 Irt Firmware | < 5.5.1 |
| Siemens | Scalance X204 Irt | - |
| Siemens | Scalance X204 Irt Pro Firmware | < 5.5.1 |
| Siemens | Scalance X204 Irt Pro | - |
| Siemens | Scalance X204-2 Firmware | < 5.2.5 |
| Siemens | Scalance X204-2 | - |
| Siemens | Scalance X204-2Fm Firmware | < 5.2.5 |
| Siemens | Scalance X204-2Fm | - |
| Siemens | Scalance X204-2Ld Firmware | < 5.2.5 |
| Siemens | Scalance X204-2Ld | - |
Related Weaknesses (CWE)
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-187092.pdfPatchVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-187092.pdfPatchVendor Advisory
FAQ
What is CVE-2021-25668?
CVE-2021-25668 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All versions < 5.5.1), SCALANCE X202-2 IRT (A...
How severe is CVE-2021-25668?
CVE-2021-25668 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-25668?
Check the references section above for vendor advisories and patch information. Affected products include: Siemens Scalance X200-4P Irt Firmware, Siemens Scalance X200-4P Irt, Siemens Scalance X201-3P Irt Firmware, Siemens Scalance X201-3P Irt, Siemens Scalance X201-3P Irt Pro Firmware.