CVE-2022-27640

Description

A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions < V1.5.18), SIMATIC CP 443-1 RNA (All versions < V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.14%
Vendor Advisory siemens.com
Affected: Siemens SIMATIC CP 442-1 RNA
Affected: Siemens SIMATIC CP 443-1 RNA
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-480937.pdf patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-27640?
CVE-2022-27640 has been scored as a medium severity vulnerability.
How to fix CVE-2022-27640?
To fix CVE-2022-27640, 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-2022-27640 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-27640 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-2022-27640?
CVE-2022-27640 affects Siemens SIMATIC CP 442-1 RNA, Siemens SIMATIC CP 443-1 RNA.
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