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Vulnerability record · CVE-2021-38529 · published 11 August 2021

CVE-2021-38529: Netgear d7800 firmware command injection vulnerability

Netgear · D7800 Firmware

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D7800 before 1.0.1.56, R7800 before 1.0.2.68, R8900 before 1.0.4.26, and R9000 before 1.0.4.26.

9.8 CVSS 3.1 Critical EPSS 1.7% · top 24.3% CWE-77 · Command injection
9.8CVSS 3.1 base score, v2 7.5
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D7800 before 1.0.1.56, R7800 before 1.0.2.68, R8900 before 1.0.4.26, and R9000 before 1.0.4.26.

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

Affected products

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

References

LinkTags
https://kb.netgear.com/000063765/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-Gateways Vendor Advisory
https://kb.netgear.com/000063765/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-Gateways Vendor Advisory

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Related vulnerabilities

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

9.8CVE-2016-10174NETGEAR router buffer overflow in hidden_lang_avi parameterThe NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html. An unauth…KEVEPSS 83%analysed9.8CVE-2021-45658Netgear d7800 firmware injection vulnerabilityCertain NETGEAR devices are affected by server-side injection. This affects D7800 before 1.0.1.58, DM200 before 1.0.0.66, EX2700 before 1.0.1.56, EX6…EPSS 0.82%9.8CVE-2021-45608Netgear d7800 firmware integer overflow vulnerabilityCertain D-Link, Edimax, NETGEAR, TP-Link, Tenda, and Western Digital devices are affected by an integer overflow by an unauthenticated attacker. Remo…EPSS 2.5%9.8CVE-2021-45618Netgear d7800 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D7800 before 1.0.1.64, EX6200v2 before 1.0.1.8…EPSS 2.0%9.8CVE-2021-45619Netgear ex6250 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects EX6200v2 before 1.0.1.86, EX6250 before 1.0.0.…EPSS 2.5%9.8CVE-2021-45623Netgear r7800 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects R7800 before 1.0.2.74, R9000 before 1.0.5.2, a…EPSS 1.7%9.8CVE-2021-38527Netgear cbr40 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.14, EX6100v2 before 1.0.1.9…EPSS 1.7%9.8CVE-2021-38516Netgear d6220 firmware vulnerabilityCertain NETGEAR devices are affected by lack of access control at the function level. This affects D6220 before 1.0.0.48, D6400 before 1.0.0.82, D700…EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2021-38529), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.