What is CVE-2022-40620?

CVE-2022-40620 is a high-severity vulnerability in Netgear R6230, classified under Improper Certificate Validation. CVSS score: 7.7/10. Published 2026-01-28.

How severe is CVE-2022-40620?

High severity. CVSS v3 base score is 7.7 out of 10.

Vulnerability in Netgear R6230

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 packages through its auto-update mechanism. An attacker (suitably positioned on the…

Vulnerability class: Improper Certificate Validation

EPSS: 0.003 (19.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Netgear R6230
Netgear R6230_firmware
Netgear R6260
Netgear R6260_firmware
Netgear R7000
Netgear R7000_firmware
Netgear R8900
Netgear R8900_firmware
Netgear R9000
Netgear R9000_firmware

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

cve@mitre.org (Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-40620?: CVE-2022-40620 is a high-severity vulnerability in Netgear R6230, classified under Improper Certificate Validation. CVSS score: 7.7/10. Published 2026-01-28.
How severe is CVE-2022-40620?: High severity. CVSS v3 base score is 7.7 out of 10.