Vulnerability Description
A vulnerability has been identified in SIMATIC CP 343-1 (6GK7343-1EX30-0XE0) (All versions), SIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0) (All versions), SIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0) (All versions), SIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0) (All versions). Affected products incorrectly validate TCP sequence numbers. This could allow an unauthenticated remote attacker to create a denial of service condition by injecting spoofed TCP RST packets.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Simatic Cp 343-1 | - |
| Siemens | Simatic Cp 343-1 Firmware | All versions |
| Siemens | Simatic Cp 343-1 Lean | - |
| Siemens | Simatic Cp 343-1 Lean Firmware | - |
| Siemens | Siplus Net Cp 343-1 | - |
| Siemens | Siplus Net Cp 343-1 Firmware | - |
| Siemens | Siplus Net Cp 343-1 Lean | - |
| Siemens | Siplus Net Cp 343-1 Lean Firmware | - |
Related Weaknesses (CWE)
References
- https://cert-portal.siemens.com/productcert/html/ssa-516818.htmlVendor Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-516818.htmlVendor Advisory
FAQ
What is CVE-2023-51440?
CVE-2023-51440 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability has been identified in SIMATIC CP 343-1 (6GK7343-1EX30-0XE0) (All versions), SIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0) (All versions), SIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0) (All ve...
How severe is CVE-2023-51440?
CVE-2023-51440 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-51440?
Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic Cp 343-1, Siemens Simatic Cp 343-1 Firmware, Siemens Simatic Cp 343-1 Lean, Siemens Simatic Cp 343-1 Lean Firmware, Siemens Siplus Net Cp 343-1.