high7.5
CVE-2018-4850
A vulnerability has been identified in SIMATIC S7-400 (incl.
Impact
A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Siemens | Simatic S7-400 Firmware | through 4.0 before 5.2 |
| Siemens | Simatic S7-400h Firmware | through 4.5 |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.securityfocus.com/bid/104217
- https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf
- https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications
- http://www.securityfocus.com/bid/104217
- https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf
- https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications