CVE-2022-20705CWE-121

Cisco Small Business RV Series Routers Vulnerabilities

Critical · published February 10, 2022

Patch now

High probability of exploitation

CVSS calls it critical at 10.0. It sits in the 99.6th percentile for exploit probability.

CVSS v3.1
10.0
EPSS
80%
Percentile
99.6
In the wild
Unconfirmed
What it is

🚨 A perfect storm of vulnerabilities is brewing in Cisco RV160, RV260, RV340, and RV345 Series Routers! This CVE lets attackers execute arbitrary code and bypass security measures as easily as flipping a switch! 🔥 Think of these routers like a high-security vault where the guard leaves the door wide open and hands out spare keys to anyone who asks. An attacker could stroll right in, do whatever they please, and exit unnoticed! With remote code execution at an attacker's fingertips, they could elevate their privileges, execute commands, or even fetch and run unsigned software. This could lead to absolute chaos, including unauthorized access to sensitive data or even a total denial of service, leaving your network in shambles!

Put simply

Think of these routers like a high-security vault where the guard leaves the door wide open and hands out spare keys to anyone who asks. An attacker could stroll right in, do whatever they please, and exit unnoticed! These vulnerabilities stem from a lack of proper authentication and authorization checks, allowing attackers to exploit the routers' firmware. This means they can run malicious code or commands without any legitimate access, compromising the entire system.

What to do

With remote code execution at an attacker's fingertips, they could elevate their privileges, execute commands, or even fetch and run unsigned software. This could lead to absolute chaos, including unauthorized access to sensitive data or even a total denial of service, leaving your network in shambles! Immediately patch your routers to the latest firmware version. Review your network configurations and access controls to ensure they are as tight as possible. Regularly audit your devices to prevent any potential exploitations in the future. You've got this! With quick action, you can secure your network and keep those cyber villains at bay! 🛡️

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.80042 · 99.6th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2022-02-10T17:06Z
EPSS history
Timeline
  • 10 FEB 17:06Z
    Cisco Small Business RV Series Routers Vulnerabilities
    cvelistv5