CVE-2021-45607

Name: CVE-2021-45607
Creator: NVD / NIST
Published: 2021-12-26T01:15:18.037+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2021-45607 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, RAX200 before 1.0.5.126, RAX75 before 1.0.5.126, and RAX80 before 1.0.5.126.. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, RAX200 before 1.0.5.126, RAX75 before 1.0.5.126, and RAX80 before 1.0.5.126.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.23%

65.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Netgear	R6400v2 Firmware	< 1.0.4.118
Netgear	R6700v3 Firmware	< 1.0.4.118
Netgear	R6900p Firmware	< 1.3.3.140
Netgear	R7000 Firmware	< 1.0.11.126
Netgear	R7000p Firmware	< 1.3.3.140
Netgear	Rax200 Firmware	< 1.0.5.126
Netgear	Rax75 Firmware	< 1.0.5.126
Netgear	Rax80 Firmware	< 1.0.5.126

References

https://kb.netgear.com/000064531/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2021-0128Patch, Vendor Advisory
https://kb.netgear.com/000064531/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2021-0128Patch, Vendor Advisory

Timeline

Published: Dec 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45607?

How severe is CVE-2021-45607?

CVE-2021-45607 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45607?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45607?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST