VULNERABILITY INTELLIGENCE

CVE-2022-27640

CVSS score6.5 MEDIUM
EPSS probability0.37%
CISA KEVNot currently listed
Published2022-05-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • productcert@siemens.com: CWE-400
  • nvd@nist.gov: CWE-400

Primary references