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

NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)

AND
     OR
          *cpe:2.3:o:siemens:simatic_et_200sp_open_controller_firmware:*:*:*:*:*:*:*:* versions up to (including) 20.8
     OR
          cpe:2.3:h:siemens:simatic_et_200sp_open_controller:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:siemens:simatic_s7-1500_software_controller_firmware:*:*:*:*:*:*:*:* versions up to (including) 20.8
     OR
          cpe:2.3:h:siemens:simatic_s7-1500_software_controller:-:*:*:*:*:*:*:*

https://cert-portal.siemens.com/productcert/pdf/ssa-700697.pdf No Types Assigned

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

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.

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.