CVE-2016-3949
N/A
Published: June 27, 2016 at 10:00 AM UTC
Updated: June 17, 2026 at 12:46 AM UTC
4 products affected across 1 vendorSIMATIC S7-300 with Profitnet Support FirmwareSIMATIC S7-300 Without Profitnet Support FirmwareSimatic S7-300 Without Profitnet Support
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Severity
N/A
Exploit prediction
EPSS 4%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
siemens-simatic-s7-300-with-profitnet-support (same device)
siemens-simatic-s7-300-without-profitnet-support (same device)
All versions
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1036089x_refsource_CONFIRMVendor Advisory
Source: [email protected]
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-818183.pdfx_refsource_CONFIRM
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-818183.pdfx_refsource_MISCMitigationThird Party AdvisoryUS Government Resource
Source: [email protected]
https://ics-cert.us-cert.gov/advisories/ICSA-16-161-01Quick Info
StatusMODIFIED
CWE
CWE-399
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