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Vulnerability record · CVE-2020-35231 · published 10 March 2021

CVE-2020-35231: Netgear gs116e firmware improper authentication vulnerability

Netgear · Gs116e Firmware

The NSDP protocol implementation on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices was affected by an authentication issue that allows an attacker to bypass access controls and obtain full control of the device.

8.8 CVSS 3.1 High EPSS 1.1% · top 36.6% CWE-287 · Improper authentication
8.8CVSS 3.1 base score, v2 8.3
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

The NSDP protocol implementation on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices was affected by an authentication issue that allows an attacker to bypass access controls and obtain full control of the device.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs Vendor Advisory
https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-26919NETGEAR JGS516PE switch missing function-level access controlNETGEAR JGS516PE devices before firmware 2.6.0.43 lack access control at the function level, allowing protected management functions to be invoked wi…KEVEPSS 57%analysed8.8CVE-2020-35229Netgear gs116e firmware vulnerabilityThe authentication token required to execute NSDP write requests on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices is not properly invalidated and can b…EPSS 0.75%8.8CVE-2020-35223Netgear gs116e firmware cross-site request forgery vulnerabilityThe CSRF protection mechanism implemented in the web administration panel on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices could be bypassed by omittin…EPSS 0.59%8.8CVE-2020-35221Netgear gs116e firmware inadequate encryption strength vulnerabilityThe hashing algorithm implemented for NSDP password authentication on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices was found to be insecure, allowing …EPSS 0.47%8.1CVE-2020-35782Netgear jgs516pe firmware vulnerabilityCertain NETGEAR devices are affected by lack of access control at the function level. This affects JGS516PE before 2.6.0.48, JGS524Ev2 before 2.6.0.4…EPSS 1.7%7.3CVE-2020-35801Netgear jgs516pe firmware vulnerabilityCertain NETGEAR devices are affected by incorrect configuration of security settings. This affects JGS516PE before 2.6.0.48, JGS524Ev2 before 2.6.0.4…EPSS 1.7%7.2CVE-2020-35227Netgear gs116e firmware classic buffer overflow vulnerabilityA buffer overflow vulnerability in the access control section on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices (in the administration web panel) allows…EPSS 1.1%7.2CVE-2020-35784Netgear jgs516pe firmware vulnerabilityCertain NETGEAR devices are affected by lack of access control at the function level. This affects JGS516PE before 2.6.0.48, JGS524PE before 2.6.0.48…EPSS 0.85%

Source: NIST National Vulnerability Database (record CVE-2020-35231), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.