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Vulnerability record · CVE-2018-21137 · published 23 April 2020

CVE-2018-21137: Netgear d3600 firmware hard-coded credentials vulnerability

Netgear · D3600 Firmware

Certain NETGEAR devices are affected by a hardcoded password. This affects D3600 before 1.0.0.76 and D6000 before 1.0.0.76.

9.8 CVSS 3.1 Critical EPSS 1.4% · top 27.8% CWE-798 · Hard-coded credentials
9.8CVSS 3.1 base score, v2 7.5
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Certain NETGEAR devices are affected by a hardcoded password. This affects D3600 before 1.0.0.76 and D6000 before 1.0.0.76.

CVSS:3.1/AV:N/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://kb.netgear.com/000060223/Security-Advisory-for-Hardcoded-Password-on-Some-Modem-Routers-PSV-2018-0099 Vendor Advisory
https://kb.netgear.com/000060223/Security-Advisory-for-Hardcoded-Password-on-Some-Modem-Routers-PSV-2018-0099 Vendor Advisory

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Related vulnerabilities

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

9.8CVE-2020-35799Netgear d3600 firmware out-of-bounds write vulnerabilityCertain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.76, D6000 befor…EPSS 1.2%9.8CVE-2019-20730Netgear d3600 firmware sql injection vulnerabilityCertain NETGEAR devices are affected by SQL injection. This affects D3600 before 1.0.0.68, D6000 before 1.0.0.68, D6200 before 1.1.00.28, D6220 befor…EPSS 0.91%9.4CVE-2020-35800Netgear ac2100 firmware vulnerabilityCertain NETGEAR devices are affected by incorrect configuration of security settings. This affects AC2100 before 1.2.0.72, AC2400 before 1.2.0.72, AC…EPSS 1.6%8.8CVE-2021-45641Netgear d3600 firmware vulnerabilityCertain NETGEAR devices are affected by incorrect configuration of security settings. This affects D3600 before 1.0.0.72, D6000 before 1.0.0.72, D620…EPSS 0.69%8.8CVE-2018-21224Netgear d3600 firmware classic buffer overflow vulnerabilityCertain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, …EPSS 0.73%8.8CVE-2018-21221Netgear r9000 firmware classic buffer overflow vulnerabilityCertain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, …EPSS 0.75%8.8CVE-2018-21222Netgear wnr2000 firmware classic buffer overflow vulnerabilityCertain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, …EPSS 0.66%8.8CVE-2018-21223Netgear d3600 firmware classic buffer overflow vulnerabilityCertain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, …EPSS 0.66%

Source: NIST National Vulnerability Database (record CVE-2018-21137), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.