CVE-2022-20842CWE-120

Cisco Small Business RV Series Routers Vulnerabilities

Critical · published August 10, 2022

CVSS v3.1
9.0
EPSS
2%
Percentile
79.1
In the wild
Unconfirmed
What it is

🔥 Multiple vulnerabilities in Cisco routers are like open doors for attackers, allowing them to execute arbitrary code remotely without breaking a sweat! 🚨 Think of it like a restaurant where anyone can walk in and cook whatever they want without even showing a reservation. These routers, if unpatched, become playgrounds for cyber mischief! An attacker could gain control of the device, potentially leaking sensitive data or even shutting down critical network services entirely. This could lead to operational chaos, leaving your business exposed and vulnerable to further attacks.

Put simply

Think of it like a restaurant where anyone can walk in and cook whatever they want without even showing a reservation. These routers, if unpatched, become playgrounds for cyber mischief! This vulnerability allows an unauthenticated remote attacker to execute arbitrary code or cause a denial of service on Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers. The flaw resides in the web management interface, which does not properly validate input, making it susceptible to remote code execution and denial of service.

What to do

An attacker could gain control of the device, potentially leaking sensitive data or even shutting down critical network services entirely. This could lead to operational chaos, leaving your business exposed and vulnerable to further attacks. Immediately patch your routers to the latest firmware version available from Cisco. Regularly audit device settings and ensure that web management interfaces are secured behind robust firewalls. Additionally, consider implementing network segmentation to minimize exposure. You've got this, security hero! 🛡️ Follow these steps to lock down your network and keep those attackers at bay!

The record
Technical detail
CVSS v3.1
9.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01859 · 79.1th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2022-08-10T08:10Z
EPSS history
Timeline
  • 10 AUG 08:10Z
    Cisco Small Business RV Series Routers Vulnerabilities
    cvelistv5