CVE-2022-40620

FunJSQ, a third-party module integrated on some NETGEAR routers and Orbi WiFi Systems, does not properly validate TLS certificates when downloading update…

High · published January 28, 2026

CVSS v3.1
7.7
EPSS
0%
Percentile
22.1
In the wild
Unconfirmed
What it is

🚨 A crafty attacker could intercept your router's update requests without even breaking a sweat! Think of this vulnerability like allowing a shady delivery driver to drop off a package at your door without checking if the delivery is legit — you could be receiving a malicious software update instead of the genuine one. 📦 If exploited, an attacker on the same network could push a malicious update to your NETGEAR router, gaining full control over your device. This means they could intercept your internet traffic, change settings, or even launch further attacks on your network. It's a serious threat that could lead to complete chaos in your connected home! 🔥

Put simply

Think of this vulnerability like allowing a shady delivery driver to drop off a package at your door without checking if the delivery is legit — you could be receiving a malicious software update instead of the genuine one. 📦 This vulnerability arises from FunJSQ, a module in NETGEAR routers, that fails to validate TLS certificates during the auto-update process, allowing for an attacker to deliver malicious update packages and execute arbitrary code.

What to do

If exploited, an attacker on the same network could push a malicious update to your NETGEAR router, gaining full control over your device. This means they could intercept your internet traffic, change settings, or even launch further attacks on your network. It's a serious threat that could lead to complete chaos in your connected home! 🔥 Update your NETGEAR router or Orbi system to the latest firmware versions immediately: R6230 to 1.1.0.112, R6260 to 1.1.0.88, R7000 to 1.0.11.134, and so on for all affected models. It's crucial to regularly check for firmware updates to ensure your devices are protected against this vulnerability. You've got this! Stay vigilant and keep your devices updated—your network's safety is within your control! 🛡️

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00305 · 22.1th percentile
Published
2026-01-28T00:00Z
EPSS history
Timeline
  • 28 JAN 00:00Z
    FunJSQ, a third-party module integrated on some NETGEAR routers and Orbi WiFi Systems, does not properly validate TLS certificates when downloading update…
    cvelistv5