CVE-2023-36521
HIGH
MEDIUM
Priority: 0.05
BB Relevance:
75/100
Published: 2023-07-11
Modified: 2026-10-23
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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). The result synchronization server of the affected products contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation of all socket-based communication of the affected products if the result server is enabled.
Weakness Classification (1)
Affected Software (6)
| Vendor | Product | Version |
|---|---|---|
| siemens | simatic_mv540_h_firmware | < 3.3.4 |
| siemens | simatic_mv540_s_firmware | < 3.3.4 |
| siemens | simatic_mv550_h_firmware | < 3.3.4 |
| siemens | simatic_mv550_s_firmware | < 3.3.4 |
| siemens | simatic_mv560_u_firmware | < 3.3.4 |
| siemens | simatic_mv560_x_firmware | < 3.3.4 |
References & Advisories (1)
Vendor Advisory