VulnerabilityModified

CVE-2019-6574

HIGH 7.5EPSS 1.85%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.85%). 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 SINAMICS PERFECT HARMONY GH180 with NXG I control, MLFBs: 6SR2...-, 6SR3...-, 6SR4...- (All Versions with option G21, G22, G23, G26, G28, G31, G32, G38, G43 or G46), SINAMICS PERFECT HARMONY GH180 with NXG II control, MLFBs: 6SR2...-, 6SR3...-, 6SR4...- (All Versions with option G21, G22, G23, G26, G28, G31, G32, G38, G43 or G46). An improperly configured Parameter Read/Write execution via Field bus network may cause the controller to restart. The vulnerability could be exploited by an attacker with network access to the device. Successful exploitation requires no privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the affected system. 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: 1.85% probability · 78th percentile
CISA KEV: Not listed
Weakness: CWE-200
Affected: siemens/sinamics perfect harmony gh180 with nxg i control mlfb 6sr2 firmware · siemens/sinamics perfect harmony gh180 with nxg i control mlfb 6sr3 firmware · siemens/sinamics perfect harmony gh180 with nxg i control mlfb 6sr4 firmware · siemens/sinamics perfect harmony gh180 with nxg ii control mlfb 6sr2 firmware · siemens/sinamics perfect harmony gh180 with nxg ii control mlfb 6sr3 firmware · siemens/sinamics perfect harmony gh180 with nxg ii control mlfb 6sr4 firmware
Source: productcert@siemens.com

References

https://cert-portal.siemens.com/productcert/pdf/ssa-865156.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-865156.pdfVendor Advisory

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