CVE-2021-45604

4.5 MEDIUM 0.4% exploit odds Fix listed

What it is

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects CBR750 before 3.2.18.2, D6220 before 1.0.0.68, D6400 before 1.0.0.102, D8500 before 1.0.3.60, LAX20 before 1.1.6.28, MK62 before 1.0.6.116, MR60 before 1.0.6.116, MS60 before 1.0.6.116, R6300v2 before 1.0.4.50, R6400 before 1.0.1.68, R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, R6900P before 1.3.3.140, R7000 before 1.0.11.116, R7000P before 1.3.3.140, R7850 before 1.0.5.68, R7900 before 1.0.4.38, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.68, R8000P before 1.4.2.84, RAX15 before 1.0.3.96, RAX20 before 1.0.3.96, RAX200 before 1.0.4.120, RAX35v2 before 1.0.3.96, RAX40v2 before 1.0.3.96, RAX43 before 1.0.3.96, RAX45 before 1.0.3.96, RAX50 before 1.0.3.96, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RS400 before 1.5.1.80, and XR1000 before 1.0.0.58.

At a glance

Exploitability: Can be exploited from the same network segment with an admin-level account. High risk of service disruption.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-12-26 01:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 04:13 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.4% in the next 30 days (EPSS).
Severity: 4.5 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-12-26 01:15 UTC
Last modified: 2026-06-17 04:13 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-787 · Out-of-bounds write
Record status: Modified

Affected

Netgear cbr750 Firmware < 3.2.18.2
Netgear d6220 Firmware < 1.0.0.68
Netgear d6400 Firmware < 1.0.0.102
Netgear d8500 Firmware < 1.0.3.60
Netgear lax20 Firmware < 1.1.6.28
Netgear mk62 Firmware < 1.0.6.116
Netgear mr60 Firmware < 1.0.6.116
Netgear ms60 Firmware < 1.0.6.116

Attack profile CVSS 3.1 · 4.5

Attack vector: Adjacent network
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

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Fix and advisories

References

NVD record · CVE.org record