Vulnerability · Published Jul 11, 2023 · Assigned by siemens
CVE-2023-36521
High 8.6
In plain English
A high-severity resource allocation without limits in SIMATIC MV540 H from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC MV540 H | All versions < V3.3.4 |
| Siemens | SIMATIC MV540 S | All versions < V3.3.4 |
| Siemens | SIMATIC MV550 H | All versions < V3.3.4 |
| Siemens | SIMATIC MV550 S | All versions < V3.3.4 |
| Siemens | SIMATIC MV560 U | All versions < V3.3.4 |
| Siemens | SIMATIC MV560 X | All versions < V3.3.4 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C