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Status published
Medium
CVE-2022-27640
A vulnerability has been identified in SIMATIC CP 442-1 RNA...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Siemens
View all reports →Affected Software
SIMATIC CP 442-1 RNA, SIMATIC CP 443-1 RNA
Vulnerable Versions:
All versions < V1.5.18
Timeline
Official Publish:
May 10th, 2022
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H