CVE-2022-40620: netgear r6230_firmware Improper Certificate Validation
Vulnerability summary
CVE-2022-40620 is a high (CVSS 7.7) Improper Certificate Validation vulnerability in netgear r6230_firmware. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.8% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 28-01-2026PublishedVulnerability first disclosed.
- 29-01-2026Last modifiedVulnerability information updated.
Description
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 network) could intercept the update request and deliver a malicious update package in order to gain arbitrary code execution on affected devices. This affects R6230 before 1.1.0.112, R6260 before 1.1.0.88, R7000 before 1.0.11.134, R8900 before 1.0.5.42, R9000 before 1.0.5.42, and XR300 before 1.0.3.72 and Orbi RBR20 before 2.7.2.26, RBR50 before 2.7.4.26, RBS20 before 2.7.2.26, and RBS50 before 2.7.4.26.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST7.7HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS trend
Probability
0.30%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
+0.02 pp
From 0.29% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (onekey.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Netgear10 products
- r6230_firmware< 1.1.0.112
- r6260_firmware< 1.1.0.88
- r7000< 1.0.11.134
- r8900_firmware< 1.0.5.42
- r9000_firmware< 1.0.5.42
1 vendor · 10 products
References
2 links- kb.netgear.com/000065132/…Vendor Advisory
- www.onekey.com/resource/security-advisory-netgear-routers-funjsq-vulnerabilitiesExploitThird Party Advisory