Vulnerability Description
Siemens SIMATIC S7-300 Profinet-enabled CPU devices with firmware before 3.2.12 and SIMATIC S7-300 Profinet-disabled CPU devices with firmware before 3.3.12 allow remote attackers to cause a denial of service (defect-mode transition) via crafted (1) ISO-TSAP or (2) Profibus packets.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Simatic S7-300 With Profitnet Support Firmware | 3.2.11 |
| Siemens | Simatic S7-300 With Profitnet Support | All versions |
| Siemens | Simatic S7-300 Without Profitnet Support | All versions |
| Siemens | Simatic S7-300 Without Profitnet Support Firmware | 3.3.11 |
Related Weaknesses (CWE)
References
- http://www.securitytracker.com/id/1036089Third Party AdvisoryVDB Entry
- http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-818183.pdfVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-818183.pdf
- https://ics-cert.us-cert.gov/advisories/ICSA-16-161-01MitigationThird Party AdvisoryUS Government Resource
- http://www.securitytracker.com/id/1036089Third Party AdvisoryVDB Entry
- http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-818183.pdfVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-818183.pdf
- https://ics-cert.us-cert.gov/advisories/ICSA-16-161-01MitigationThird Party AdvisoryUS Government Resource
FAQ
What is CVE-2016-3949?
CVE-2016-3949 is a vulnerability with a CVSS score of 7.5 (HIGH). Siemens SIMATIC S7-300 Profinet-enabled CPU devices with firmware before 3.2.12 and SIMATIC S7-300 Profinet-disabled CPU devices with firmware before 3.3.12 allow remote attackers to cause a denial of...
How severe is CVE-2016-3949?
CVE-2016-3949 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-2016-3949?
Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic S7-300 With Profitnet Support Firmware, Siemens Simatic S7-300 With Profitnet Support, Siemens Simatic S7-300 Without Profitnet Support, Siemens Simatic S7-300 Without Profitnet Support Firmware.