CVEvulnerability

CVE-2020-15783

7.5 HIGH Published 2020-11-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-11-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-400

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.

Affected configurations

• siemens sinumerik 840d sl firmware • siemens simatic s7-300 cpu 312 firmware • siemens simatic s7-300 cpu 314 firmware • siemens simatic s7-300 cpu 315-2 dp firmware • siemens simatic s7-300 cpu 315-2 pn firmware • siemens simatic s7-300 cpu 317-2 pn firmware • siemens simatic s7-300 cpu 317-2 dp firmware • siemens simatic s7-300 cpu 315f-2 dp firmware • siemens simatic s7-300 cpu 315f-2 pn firmware • siemens simatic s7-300 cpu 317f-2 pn firmware • siemens simatic s7-300 cpu 317f-2 dp firmware • siemens simatic tdc cpu555 firmware

Related

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References