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 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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
siemensCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 48%
VendorProductVersion
siemenssimatic_cp_442-1_rna_firmware
𝑥
< 1.5.18
siemenssimatic_cp_443-1_rna_firmware
𝑥
< 1.5.18
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://cert-portal.siemens.com/productcert/pdf/ssa-480937.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-480937.pdf