CVE-2016-3949
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)…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 4.49% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- siemens/simatic s7-300 with profitnet support firmware · siemens/simatic s7-300 without profitnet support firmware
- Source
- cve@mitre.org
References
- http://www.securitytracker.com/id/1036089Third Party Advisory, VDB 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-16-161-01Mitigation, Third Party Advisory, US Government Resource
- http://www.securitytracker.com/id/1036089Third Party Advisory, VDB 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-16-161-01Mitigation, Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.