CVE-2016-3949
Summary
| CVE | CVE-2016-3949 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-06-27 10:59:06 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.0 7.5 HIGH from [email protected]
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Problem Types: CWE-399 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
CompleteAV:N/AC:L/Au:N/C:N/I:N/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Siemens | Simatic S7-300 Without Profitnet Support | All | All | All | All |
| Operating System | Siemens | Simatic S7-300 Without Profitnet Support Firmware | 3.3.11 | All | All | All |
| Hardware | Siemens | Simatic S7-300 With Profitnet Support | All | All | All | All |
| Operating System | Siemens | Simatic S7-300 With Profitnet Support Firmware | 3.2.11 | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Siemens SIMATIC S7-300 CPU TSAP Processing Flaw Lets Remote Users Cause the Target System to Crash - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | Third Party Advisory, VDB Entry |
| Siemens SIMATIC S7-300 Denial-of-Service Vulnerability | ICS-CERT | af854a3a-2127-422b-91ae-364da2661108 | ics-cert.us-cert.gov | Mitigation, Third Party Advisory, US Government Resource |
| Siemens | af854a3a-2127-422b-91ae-364da2661108 | www.siemens.com | Vendor Advisory |
| cert-portal.siemens.com/productcert/pdf/ssa-818183.pdf | af854a3a-2127-422b-91ae-364da2661108 | cert-portal.siemens.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 591197 Siemens SIMATIC S7-300 Denial of Service (DoS) Vulnerability (ICSA-16-161-01, SSA-818183)