Vulnerability Description
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 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 attacker to gain unauthorized read access to sensitive data or cause the VLPWA interface of the affected device to shut down, resulting in DoS condition.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios | - |
| Cisco | 1120 Connected Grid Router | - |
| Cisco | 1240 Connected Grid Router | - |
| Cisco | 807 Industrial Integrated Services Router | - |
| Cisco | 809 Industrial Integrated Services Router | - |
| Cisco | 829 Industrial Integrated Services Router | - |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iVendor Advisory
FAQ
What is CVE-2020-3426?
CVE-2020-3426 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 Se...
How severe is CVE-2020-3426?
CVE-2020-3426 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3426?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios, Cisco 1120 Connected Grid Router, Cisco 1240 Connected Grid Router, Cisco 807 Industrial Integrated Services Router, Cisco 809 Industrial Integrated Services Router.