A vulnerability has been identified in SIMATIC S7-1500 CPU (All versions >= V2.0 and < V2.5), SIMATIC S7-1500 CPU (All versions <= V1.8.5). Specially crafted network packets sent to port 80/tcp or 443/tcp could allow an unauthenticated remote attacker to cause a Denial-of-Service condition of the device. The security vulnerability could be exploited by an attacker with network access to the affected systems on port 80/tcp or 443/tcp. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.

Published : 2019-04-17 14:29 Updated : 2019-04-18 15:12

CVSS Score More info
Score 7.8 / 10
Vendor Product Version URI
Siemens Simatic S7-1500 Firmware 1.8.5 cpe:/o:siemens:simatic_s7-1500_firmware:1.8.5
  1. Siemens (1) Search CVE
    1. Simatic S7-1500 Firmware (1) Search CVE
      1. 1.8.5


ID Name Description Links
CWE-20 Improper Input Validation The product does not validate or incorrectly validates input that can affect the control flow or data flow of a program. CVE

History of changes

Date Event
2019-04-18 15:12
2019-04-17 14:29