VulnerabilityModified

CVE-2019-13942

HIGH 7.5EPSS 1.95%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.95%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability has been identified in EN100 Ethernet module DNP3 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.37), EN100 Ethernet module IEC104 variant (All versions), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions). An unauthorized user could exploit a buffer overflow vulnerability in the webserver. Specially crafted packets sent could cause a Denial-of-Service condition and if certain conditions are met, the affected devices must be restarted manually to fully recover. At the time of advisory publication no public exploitation of this security vulnerability was known.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 1.95% probability · 79th percentile
CISA KEV: Not listed
Weakness: CWE-119
Affected: siemens/en100 ethernet module with firmware variant dnp3 tcp · siemens/en100 ethernet module with firmware variant iec 61850 · siemens/en100 ethernet module with firmware variant iec104 · siemens/en100 ethernet module with firmware variant modbus tcp · siemens/en100 ethernet module with firmware variant profinet io
Source: productcert@siemens.com

References

https://cert-portal.siemens.com/productcert/pdf/ssa-418979.pdfVendor Advisory
https://www.us-cert.gov/ics/advisories/icsa-19-344-07Third Party Advisory, US Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-418979.pdfVendor Advisory
https://www.us-cert.gov/ics/advisories/icsa-19-344-07Third Party Advisory, US Government Resource

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