What’s Vulnerable › Vulnerabilities
CVE-2017-2681
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2017-05-11 · updated 2026-06-17
- Weakness: CWE-400
Description
Specially crafted PROFINET DCP packets sent on a local Ethernet segment (Layer 2) to an affected product could cause a denial of service condition of that product. Human interaction is required to recover the system. PROFIBUS interfaces are not affected.
Affected products
- Siemens Dk Standard Ethernet Controller Firmware: before 4.1.1; 4.1.1 — fixed in 4.1.1
- Siemens Ek-Ertec 200 Pn Io Firmware: before 4.2.1; 4.2.1 — fixed in 4.2.1
- Siemens Ek-Ertec 200P Pn Io Firmware: before 4.4.0; 4.4.0 — fixed in 4.4.0
- Siemens Ie/As-I Link Pn Io Firmware: all versions
- Siemens Ie/Pb-Link Firmware: before 3.0 — fixed in 3.0
- Siemens Pn/Pn Coupler Firmware: before 4.0 — fixed in 4.0
- Siemens Scalance M-800 Firmware: before 4.03 — fixed in 4.03
- Siemens Scalance S615 Firmware: before 4.03 — fixed in 4.03
- Siemens Scalance W700 Firmware: before 6.1 — fixed in 6.1
- Siemens Scalance X200 Firmware: before 5.2.2 — fixed in 5.2.2
- Siemens Scalance X200 Irt Firmware: before 5.4.0 — fixed in 5.4.0
- Siemens Scalance X300 Firmware: before 4.1.0 — fixed in 4.1.0
- Siemens Scalance X408 Firmware: before 4.1.0 — fixed in 4.1.0
- Siemens Scalance X414 Firmware: before 3.10.2 — fixed in 3.10.2
- Siemens Scalance Xm400 Firmware: before 6.1 — fixed in 6.1
- Siemens Scalance Xr500 Firmware: before 6.1 — fixed in 6.1
- Siemens Simatic Cm 1542-1 Firmware: before 2.0 — fixed in 2.0
- Siemens Simatic Cm 1542Sp-1 Firmware: before 1.0.15 — fixed in 1.0.15
- Siemens Simatic Cp 1243-1 Dnp3 Firmware: all versions
- Siemens Simatic Cp 1243-1 Firmware: before 2.1.82 — fixed in 2.1.82
- Siemens Simatic Cp 1243-1 Iec Firmware: all versions
- Siemens Simatic Cp 1243-1 Irc Firmware: before 2.1.82 — fixed in 2.1.82
- Siemens Simatic Cp 1542Sp-1 Irc Firmware: before 1.0.15 — fixed in 1.0.15
- Siemens SIMATIC CP 1543-1 V4.0: before 1.0.15 — fixed in 1.0.15
- Siemens Simatic Cp 1543Sp-1 Firmware: before 1.0.15; before 2.1 — fixed in 1.0.15, 2.1
- Siemens Simatic Cp 1604 Firmware: before 2.7 — fixed in 2.7
- Siemens Simatic Cp 1616 Firmware: before 2.7 — fixed in 2.7
- Siemens Simatic Cp 343-1 Adv Firmware: all versions
- Siemens Simatic Cp 343-1 Lean Firmware: before 3.1.3 — fixed in 3.1.3
- Siemens Simatic Cp 343-1 Std Firmware: before 3.1.3 — fixed in 3.1.3
How to fix
Upgrade to a fixed version: Siemens Dk Standard Ethernet Controller Firmware 4.1.1; Siemens Ek-Ertec 200 Pn Io Firmware 4.2.1; Siemens Ek-Ertec 200P Pn Io Firmware 4.4.0; Siemens Ie/Pb-Link Firmware 3.0; Siemens Pn/Pn Coupler Firmware 4.0; Siemens Scalance M-800 Firmware 4.03; Siemens Scalance S615 Firmware 4.03; Siemens Scalance W700 Firmware 6.1; Siemens Scalance X200 Firmware 5.2.2; Siemens Scalance X200 Irt Firmware 5.4.0; Siemens Scalance X300 Firmware 4.1.0; Siemens Scalance X408 Firmware 4.1.0. Check the vendor advisory for mitigations.
References
- http://www.securityfocus.com/bid/98369
- http://www.securitytracker.com/id/1038463
- https://cert-portal.siemens.com/productcert/html/ssa-293562.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-293562.pdf
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-293562.pdf
- http://www.securityfocus.com/bid/98369
- http://www.securitytracker.com/id/1038463
- https://cert-portal.siemens.com/productcert/html/ssa-293562.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-293562.pdf
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-293562.pdf
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