6.4
CVSSv2

CVE-2020-3426

Published: 24/09/2020 Updated: 07/11/2023
CVSS v2 Base Score: 6.4 | Impact Score: 4.9 | Exploitability Score: 10
CVSS v3 Base Score: 9.1 | Impact Score: 5.2 | Exploitability Score: 3.9
VMScore: 570
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P

Vulnerability Summary

A vulnerability in the implementation of the Low Power, Wide Area (LPWA) subsystem of Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an unauthenticated, remote malicious user to gain unauthorized read access to sensitive data or cause a denial of service (DoS) condition. The vulnerability is due to a lack of input and validation checking mechanisms for virtual-LPWA (VLPWA) protocol modem messages. An attacker could exploit this vulnerability by supplying crafted packets to an affected device. A successful exploit could allow the malicious user to gain unauthorized read access to sensitive data or cause the VLPWA interface of the affected device to shut down, resulting in DoS condition.

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Vendor Advisories

A vulnerability in the implementation of the Low Power, Wide Area (LPWA) subsystem of Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data or cause a de ...