VulnerabilityModified

CVE-2019-19281

A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl.

HIGH 7.5EPSS 1.68%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.68%). 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 SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition. The vulnerability can be triggered if specially crafted UDP packets are sent to the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the device availability.

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: 1.68% probability · 76th percentile
CISA KEV: Not listed
Weakness: CWE-400
Affected: siemens/simatic et 200sp open controller cpu 1515sp pc2 firmware · siemens/simatic s7-1500 cpu 1511-1 pn firmware · siemens/simatic s7-1500 cpu 1513-1 pn firmware · siemens/simatic s7-1500 cpu 1515-2 pn firmware · siemens/simatic s7-1500 cpu 1516-3 pn firmware · siemens/simatic s7-1500 cpu 1516-3 dp firmware · siemens/simatic s7-1500 cpu 1517-3 pn firmware · siemens/simatic s7-1500 cpu 1517-3 dp firmware · siemens/simatic s7-1500 cpu 1518-4 pn firmware · siemens/simatic s7-1500 cpu 1518-4 dp firmware · siemens/simatic s7-1500 cpu 1507s firmware · siemens/simatic s7-1500 cpu 1508s firmware · siemens/simatic s7-1500 cpu 1507s f firmware · siemens/simatic s7-1500 cpu 1508s f firmware
Source: productcert@siemens.com

References

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