CVE-2022-40620

Exp

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.

Published: 2026-01-28 Last update: 2026-03-09 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-40620 is rated Exploit Available (51.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-40620

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-40620

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-01 0.01% 0.05% +0.04%
2 2026-01-29 — 0.01% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-40620

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.7 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.2 5.5 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2022-40620

Affected software / configurations for CVE-2022-40620

Vendor Product Version Raw CPE
netgear rbr20_firmware < 2.7.2.26 cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:*
netgear r6230_firmware < 1.1.0.112 cpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:*
netgear r6260_firmware < 1.1.0.88 cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:*
netgear r7000_firmware < 1.0.11.134 cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
netgear r8900_firmware < 1.0.5.42 cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:*
netgear r9000_firmware < 1.0.5.42 cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
netgear rax120_firmware < 1.2.8.40 cpe:2.3:o:netgear:rax120_firmware:*:*:*:*:*:*:*:*
netgear rax120v2_firmware < 1.2.8.40 cpe:2.3:o:netgear:rax120v2_firmware:*:*:*:*:*:*:*:*
netgear xr300_firmware < 1.0.3.72 cpe:2.3:o:netgear:xr300_firmware:*:*:*:*:*:*:*:*
netgear rbs20_firmware < 2.7.2.26 cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-40620

cvelogic Threat Intelligence