CVE-2023-35920
Summary
| CVE | CVE-2023-35920 |
|---|---|
| State | PUBLISHED |
| Assigner | siemens |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-07-11 10:15:10 UTC |
| Updated | 2026-10-23 23:10:00 UTC |
| Description | A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3.4), SIMATIC MV540 S (All versions < V3.3.4), SIMATIC MV550 H (All versions < V3.3.4), SIMATIC MV550 S (All versions < V3.3.4), SIMATIC MV560 U (All versions < V3.3.4), SIMATIC MV560 X (All versions < V3.3.4). Affected devices cannot properly process specially crafted IP packets sent to the devices. This could allow an unauthenticated remote attacker to cause a denial of service condition. The affected devices must be restarted manually. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.008660000 probability, percentile 0.583030000 (date 2026-10-23)
Problem Types: CWE-400 | NVD-CWE-noinfo | CWE-400 CWE-400: Uncontrolled Resource Consumption
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | [email protected] | Secondary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | CNA | DECLARED | 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 |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Siemens | Simatic Mv540 H | - | All | All | All |
| Operating System | Siemens | Simatic Mv540 H Firmware | All | All | All | All |
| Hardware | Siemens | Simatic Mv540 S | - | All | All | All |
| Operating System | Siemens | Simatic Mv540 S Firmware | All | All | All | All |
| Hardware | Siemens | Simatic Mv550 H | - | All | All | All |
| Operating System | Siemens | Simatic Mv550 H Firmware | All | All | All | All |
| Hardware | Siemens | Simatic Mv550 S | - | All | All | All |
| Operating System | Siemens | Simatic Mv550 S Firmware | All | All | All | All |
| Hardware | Siemens | Simatic Mv560 U | - | All | All | All |
| Operating System | Siemens | Simatic Mv560 U Firmware | All | All | All | All |
| Hardware | Siemens | Simatic Mv560 X | - | All | All | All |
| Operating System | Siemens | Simatic Mv560 X Firmware | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Siemens | SIMATIC MV540 H | affected All versions < V3.3.4 | Not specified |
| CNA | Siemens | SIMATIC MV540 S | affected All versions < V3.3.4 | Not specified |
| CNA | Siemens | SIMATIC MV550 H | affected All versions < V3.3.4 | Not specified |
| CNA | Siemens | SIMATIC MV550 S | affected All versions < V3.3.4 | Not specified |
| CNA | Siemens | SIMATIC MV560 U | affected All versions < V3.3.4 | Not specified |
| CNA | Siemens | SIMATIC MV560 X | affected All versions < V3.3.4 | Not specified |
| ADP | Siemens | Simatic Mv540 H | affected V3.3.4 custom | Not specified |
| ADP | Siemens | Simatic Mv540 S | affected V3.3.4 custom | Not specified |
| ADP | Siemens | Simatic Mv550 H | affected V3.3.4 custom | Not specified |
| ADP | Siemens | Simatic Mv550 S | affected V3.3.4 custom | Not specified |
| ADP | Siemens | Simatic Mv560 U | affected V3.3.4 custom | Not specified |
| ADP | Siemens | Simatic Mv560 X | affected V3.3.4 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| cert-portal.siemens.com/productcert/pdf/ssa-561322.pdf | af854a3a-2127-422b-91ae-364da2661108 | cert-portal.siemens.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.