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MEDIUM · 6.5

CVE-2022-27640

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 req...

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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
SiemensSimatic Cp 442-1 Rna Firmware< 1.5.18
SiemensSimatic Cp 442-1 Rna-
SiemensSimatic Cp 443-1 Rna Firmware< 1.5.18
SiemensSimatic Cp 443-1 Rna-

Related Weaknesses (CWE)

CWE-400

References

FAQ

What is CVE-2022-27640?

CVE-2022-27640 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 req...

How severe is CVE-2022-27640?

CVE-2022-27640 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-27640?

Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic Cp 442-1 Rna Firmware, Siemens Simatic Cp 442-1 Rna, Siemens Simatic Cp 443-1 Rna Firmware, Siemens Simatic Cp 443-1 Rna.