CVE-2021-40368 
A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 414-2 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 416-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 416F-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions < V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions < V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.

This could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.
Problem types: cwe_id: CWE-119
description: CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected products: vendor: Siemens
product:  SIMATIC S7-400 CPU 412-1 DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 412-2 DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 412-2 PN/DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 414-2 DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 414-3 DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 414-3 PN/DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 414F-3 PN/DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 416-2 DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 416-3 DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 416-3 PN/DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 416F-2 DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 416F-3 PN/DP V7
default_status: unknown
vendor: Siemens
product:  SIMATIC S7-400 CPU 417-4 DP V7
default_status: unknown
vendor: Siemens
product: SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)
default_status: unknown
vendor: Siemens
product: SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)
default_status: unknown
vendor: Siemens
product: SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)
default_status: unknown
vendor: Siemens
product: SIPLUS S7-400 CPU 414-3 PN/DP V7
default_status: unknown
vendor: Siemens
product: SIPLUS S7-400 CPU 416-3 PN/DP V7
default_status: unknown
vendor: Siemens
product: SIPLUS S7-400 CPU 416-3 V7
default_status: unknown
vendor: Siemens
product: SIPLUS S7-400 CPU 417-4 V7
default_status: unknown
CVSS v3.1: version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
baseScore: 7.5
baseSeverity: HIGH
Published: 2022-04-12T09:07:23.000Z