← Vulnerability feed

Vulnerability record · CVE-2021-45648 · published 26 December 2021

CVE-2021-45648: Netgear ex6100v2 firmware information exposure vulnerability

Netgear · Ex6100v2 Firmware

Certain NETGEAR devices are affected by disclosure of sensitive information. This affects EX6100v2 before 1.0.1.106, EX6150v2 before 1.0.1.106, EX6250 before 1.0.0.146, EX6400 before 1.0.2.164, EX6400v2 before 1.0.0.146, EX6410 before 1.0.0.146, EX6420 before 1.0.0.146, EX7300 before 1.0.2.164, EX7300v2 before 1.0.0.146, EX7320 before 1.0.0.146, EX7700 before 1.0.0.222, LBR1020 before 2.6.5.16, LBR20 before 2.6.5.2, RBK352 before 4.3.4.7, RBK50 before 2.7.3.22, RBR350 before 4.3.4.7, RBR50 before 2.7.3.22, and RBS350 before 4.3.4.7.

7.5 CVSS 3.1 High EPSS 0.78% · top 45.8% CWE-200 · Information exposure
7.5CVSS 3.1 base score, v2 5.0
0.78%EPSS exploitation probability, 30 days
NoNot in CISA KEV
18Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Certain NETGEAR devices are affected by disclosure of sensitive information. This affects EX6100v2 before 1.0.1.106, EX6150v2 before 1.0.1.106, EX6250 before 1.0.0.146, EX6400 before 1.0.2.164, EX6400v2 before 1.0.0.146, EX6410 before 1.0.0.146, EX6420 before 1.0.0.146, EX7300 before 1.0.2.164, EX7300v2 before 1.0.0.146, EX7320 before 1.0.0.146, EX7700 before 1.0.0.222, LBR1020 before 2.6.5.16, LBR20 before 2.6.5.2, RBK352 before 4.3.4.7, RBK50 before 2.7.3.22, RBR350 before 4.3.4.7, RBR50 before 2.7.3.22, and RBS350 before 4.3.4.7.

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

Affected products

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

References

LinkTags
https://kb.netgear.com/000064494/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-Extenders-and-Wi PatchVendor Advisory
https://kb.netgear.com/000064494/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-Extenders-and-Wi PatchVendor Advisory

Track CVE-2021-45648 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

9.8CVE-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-2021-45618Netgear 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-2021-38527Netgear 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-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-2018-21153Netgear d7800 firmware classic buffer overflow vulnerabilityCertain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D7800 before 1.0.1.34, DM200 before 1.0.0.50, …EPSS 1.6%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-2021-34947Netgear d7800 firmware out-of-bounds write vulnerabilityNETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitr…EPSS 0.55%

Source: NIST National Vulnerability Database (record CVE-2021-45648), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.