Back to Database
Status published
Unknown
CVE-2020-15783
A vulnerability has been identified in SIMATIC S7-300 CPU family...
Vulnerability Description
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC TDC CPU555 (All versions), SINUMERIK 840D sl (All versions). Sending multiple specially crafted packets to the affected devices could cause a Denial-of-Service on port 102. A cold restart is required to recover the service.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-15783
Credits & Attribution
No credits recorded in the NVD database.
More from Siemens
View All →CVE-2025-41224
A vulnerability has been identified in RUGGEDCOM RMC8388 V5.X (All...
High
7.7
CVE-2025-41223
A vulnerability has been identified in RUGGEDCOM i800 (All versions),...
Medium
6.3
CVE-2025-41222
A vulnerability has been identified in RUGGEDCOM i800 (All versions),...
Medium
6.9
CVE-2025-40949
A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All...
High
8.9
CVE-2025-40948
A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All...
Medium
6.1
Affected Vendor
Siemens
View all reports →Affected Software
SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants), SIMATIC TDC CPU555, SINUMERIK 840D sl
Vulnerable Versions:
All versions
Timeline
Official Publish:
November 12th, 2020
Last Modified:
June 2nd, 2026
Added to House:
July 21st, 2026
CVSS Vectors
No vector data available