CVE-2023-36521

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.

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.22%
Vendor Advisory siemens.com
Affected: Siemens SIMATIC MV540 H
Affected: Siemens SIMATIC MV540 S
Affected: Siemens SIMATIC MV550 H
Affected: Siemens SIMATIC MV550 S
Affected: Siemens SIMATIC MV560 U
Affected: Siemens SIMATIC MV560 X
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-561322.pdf vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-36521?
CVE-2023-36521 has been scored as a high severity vulnerability.
How to fix CVE-2023-36521?
To fix CVE-2023-36521, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-36521 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-36521 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-36521?
CVE-2023-36521 affects Siemens SIMATIC MV540 H, Siemens SIMATIC MV540 S, Siemens SIMATIC MV550 H, Siemens SIMATIC MV550 S, Siemens SIMATIC MV560 U, Siemens SIMATIC MV560 X.
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