CVE-2021-33737
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
42.5%
A vulnerability has been identified in SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 ERPC (All versions), SIMATIC CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3). Sending a specially crafted packet to port 102/tcp of an affected device could cause a denial of service condition. A restart is needed to restore normal operations.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| siemens | simatic_cp343-1 | - | cpe:2.3:h:siemens:simatic_cp343-1:-:*:*:*:*:*:*:* |
| siemens | simatic_cp_343-1_firmware | * | cpe:2.3:o:siemens:simatic_cp_343-1_firmware:*:*:*:*:*:*:*:* |
| siemens | simatic_cp343-1_advanced | - | cpe:2.3:h:siemens:simatic_cp343-1_advanced:-:*:*:*:*:*:*:* |
| siemens | simatic_cp_343-1_advanced_firmware | * | cpe:2.3:o:siemens:simatic_cp_343-1_advanced_firmware:*:*:*:*:*:*:*:* |
| siemens | simatic_cp_343-1_erpc | * | cpe:2.3:h:siemens:simatic_cp_343-1_erpc:*:*:*:*:*:*:*:* |
| siemens | simatic_cp_343-1_erpc_firmware | * | cpe:2.3:o:siemens:simatic_cp_343-1_erpc_firmware:*:*:*:*:*:*:*:* |
| siemens | simatic_cp_343-1_lean | * | cpe:2.3:h:siemens:simatic_cp_343-1_lean:*:*:*:*:*:*:*:* |
| siemens | simatic_cp_343-1_lean_firmware | * | cpe:2.3:o:siemens:simatic_cp_343-1_lean_firmware:*:*:*:*:*:*:*:* |
| siemens | simatic_cp_443-1 | * | cpe:2.3:h:siemens:simatic_cp_443-1:*:*:*:*:*:*:*:* |
| siemens | simatic_cp_443-1_firmware | * | cpe:2.3:o:siemens:simatic_cp_443-1_firmware:*:*:*:*:*:*:*:* |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
42.5%