CVE-2021-34174

Name: CVE-2021-34174
Creator: NVD / NIST
Published: 2021-07-14T19:15:07.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.6/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2021-34174 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. A vulnerability exists in Broadcom BCM4352 and BCM43684 chips. Any wireless router using BCM4352 and BCM43684 will be affected, such as ASUS AX6100. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

A vulnerability exists in Broadcom BCM4352 and BCM43684 chips. Any wireless router using BCM4352 and BCM43684 will be affected, such as ASUS AX6100. An attacker may cause a Denial of Service (DoS) to any device connected to BCM4352 or BCM43684 routers via an association or reassociation frame.

Metrics

CVSS 3.1

4.6/10

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

EPSS Probability

0.40%

31.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Broadcom	Bcm4352 Firmware	All versions
Broadcom	Bcm43684 Firmware	All versions

References

https://github.com/E7merThird Party Advisory
https://github.com/E7mer/OWFuzzExploit, Third Party Advisory
https://github.com/E7merThird Party Advisory
https://github.com/E7mer/OWFuzzExploit, Third Party Advisory

Timeline

Published: Jul 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-34174?

How severe is CVE-2021-34174?

CVE-2021-34174 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2021-34174?

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-2021-34174?

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

Scan your code now

Source: NVD / NIST