Vulnerability Details : CVE-2023-36521
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.
Vulnerability category: Denial of service
Products affected by CVE-2023-36521
- cpe:2.3:o:siemens:simatic_mv540_h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv540_s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv550_h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv550_s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv560_u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_mv560_x_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-36521
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 40 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-36521
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
8.6
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
3.9
|
4.0
|
Siemens AG |
CWE ids for CVE-2023-36521
-
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.Assigned by:
- nvd@nist.gov (Primary)
- productcert@siemens.com (Secondary)
References for CVE-2023-36521
-
https://cert-portal.siemens.com/productcert/pdf/ssa-561322.pdf
Vendor Advisory
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