CVE-2021-40368
- State
- Published
- Severity
- 7.5 High
- Published
- Apr 12, 2022
- Updated
- Apr 21, 2025
- Reserved
- Sep 1, 2021
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | 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 | siemens |
Weaknesses
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected Products
| Product | Versions |
|---|---|
SIMATIC S7-400 CPU 412-1 DP V7Siemens |
|
SIMATIC S7-400 CPU 412-2 DP V7Siemens |
|
SIMATIC S7-400 CPU 412-2 PN/DP V7Siemens |
|
SIMATIC S7-400 CPU 414-2 DP V7Siemens |
|
SIMATIC S7-400 CPU 414-3 DP V7Siemens |
|
SIMATIC S7-400 CPU 414-3 PN/DP V7Siemens |
|
SIMATIC S7-400 CPU 414F-3 PN/DP V7Siemens |
|
SIMATIC S7-400 CPU 416-2 DP V7Siemens |
|
SIMATIC S7-400 CPU 416-3 DP V7Siemens |
|
SIMATIC S7-400 CPU 416-3 PN/DP V7Siemens |
|
SIMATIC S7-400 CPU 416F-2 DP V7Siemens |
|
SIMATIC S7-400 CPU 416F-3 PN/DP V7Siemens |
|
SIMATIC S7-400 CPU 417-4 DP V7Siemens |
|
SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)Siemens |
|
SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)Siemens |
|
SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)Siemens |
|
SIPLUS S7-400 CPU 414-3 PN/DP V7Siemens |
|
SIPLUS S7-400 CPU 416-3 PN/DP V7Siemens |
|
SIPLUS S7-400 CPU 416-3 V7Siemens |
|
SIPLUS S7-400 CPU 417-4 V7Siemens |
|
References
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