SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-2680

Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a local Ethernet segment (Layer 2).

HIGH 7.1EPSS 1.15%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a local Ethernet segment (Layer 2). Human interaction is required to recover the systems. PROFIBUS interfaces are not affected.

CVSS 4.0
7.1 HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
1.15% probability · 65th percentile
CISA KEV
Not listed
Weakness
CWE-400
Affected
siemens/simatic cp 343-1 std firmware · siemens/simatic cp 343-1 lean firmware · siemens/simatic cp 343-1 adv firmware · siemens/simatic cp 443-1 std firmware · siemens/simatic cp 443-1 adv firmware · siemens/simatic cp 443-1 opc-ua firmware · siemens/simatic cp 1243-1 firmware · siemens/simatic cm 1542-1 firmware · siemens/simatic cp 1542sp-1 firmware · siemens/simatic cp 1542sp-1 irc firmware · siemens/simatic cp 1543sp-1 firmware · siemens/simatic cp 1543-1 firmware · siemens/simatic rf650r firmware · siemens/simatic rf680r firmware · siemens/simatic rf685r firmware · siemens/simatic cp 1616 firmware · siemens/simatic cp 1604 firmware · siemens/simatic dk-1616 pn io firmware · siemens/scalance x200 firmware · siemens/scalance x200 irt firmware · +40 more
Source
productcert@siemens.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.