CVE-2022-20701criticalunder attackCWE-121

CVE-2022-20701: critical vulnerability in Cisco Small Business RV Series Router Firmware

Cisco Small Business RV Series Routers Vulnerabilities

Published · Updated

Follow this CVE+ Monitor Cisco Small Business RV Series Router+ Monitor Small Business RV160, RV260, RV340, and RV345 Series Routers

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58Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 10epss 9.7%
from disclosure to weapon
Published on NVDFeb 10
CISA KEV+21d
Action required by CISAfederal deadline: 2022-03-17

Apply updates per vendor instructions.

In short

Critical vulnerabilities in Cisco Small Business routers allow attackers to execute malicious code, bypass security protections, and take complete control of the device without authorization. These flaws affect RV160, RV260, RV340, and RV345 models and pose severe risks to network security.

Technical detail

Multiple buffer overflow and authentication bypass vulnerabilities in Cisco Small Business RV Series routers enable unauthenticated remote code execution with elevated privileges, unsigned firmware installation, and denial of service conditions. Attack vectors include network-accessible management interfaces and malicious firmware; pre-conditions vary but include network access; impact ranges from complete system compromise to service disruption.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
Cisco · Cisco Small Business RV Series Router Firmware
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