CVE-2022-20708KEV · OVERDUECWE-121

Cisco Small Business RV Series Routers Vulnerabilities

Critical · published February 10, 2022

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 10.0. It is confirmed in active exploitation. It sits in the 96.7th percentile for exploit probability.

1682
days past CISA
deadline
CVSS v3.1
10.0
EPSS
15%
Percentile
96.7
In the wild
Confirmed
What it is

🚨 A critical vulnerability in Cisco's RV160, RV260, RV340, and RV345 routers lets attackers run wild without breaking a sweat! 🔥 Think of these routers as a secure bank vault with several locks. Unfortunately, a few of those locks are faulty, allowing anyone with the right knowledge to waltz right in and access everything inside, including your most precious valuables – your data! An attacker could execute arbitrary code, elevate privileges, bypass authentication, and even launch a denial of service attack. This is absolutely devastating! With complete control, they could fetch and run unsigned software, leaving your whole network wide open to further exploits.

Put simply

Think of these routers as a secure bank vault with several locks. Unfortunately, a few of those locks are faulty, allowing anyone with the right knowledge to waltz right in and access everything inside, including your most precious valuables – your data! These vulnerabilities stem from improper validation and authentication protections within the router's firmware, allowing unauthorized commands to be executed seamlessly.

What to do

An attacker could execute arbitrary code, elevate privileges, bypass authentication, and even launch a denial of service attack. This is absolutely devastating! With complete control, they could fetch and run unsigned software, leaving your whole network wide open to further exploits. Immediately update your routers to the latest firmware versions provided by Cisco to mitigate these vulnerabilities. Additionally, review and enhance your network security policies to protect against such threats. Don’t wait — cybercriminals are already on the prowl! You've got this! Patch those routers and secure your network like the hero you are! 🛡️

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
0.14863 · 96.7th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2022-02-10T17:06Z
KEV added
2022-03-03 · due 2022-03-17
EPSS history
Timeline
  • 03 MAR 00:00Z
    Added to CISA KEV — remediate by Mar 17
    kev
  • 10 FEB 17:06Z
    Cisco Small Business RV Series Routers Vulnerabilities
    cvelistv5