VulnerabilityModified

CVE-2020-15796

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

HIGH 7.5EPSS 1.61%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.61%). 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 (incl. SIPLUS variants) (V20.8), SIMATIC S7-1500 Software Controller (V20.8). The web server of the affected products contains a vulnerability that could allow a remote attacker to trigger a denial-of-service condition by sending a specially crafted HTTP request.

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: 1.61% probability · 75th percentile
CISA KEV: Not listed
Weakness: CWE-248
Affected: siemens/simatic et 200sp open controller firmware · siemens/simatic s7-1500 software controller firmware
Source: productcert@siemens.com

References

https://cert-portal.siemens.com/productcert/pdf/ssa-700697.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-700697.pdfVendor Advisory

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