CVE-2021-33271: Buffer Overflow

Q: What is CVE-2021-33271?

CVE-2021-33271 is a stack buffer overflow vulnerability found in D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410.

Q: How severe is CVE-2021-33271?

CVE-2021-33271 has a severity rating of 9.8, which is considered critical.

Q: How does CVE-2021-33271 affect D-Link DIR-809 devices?

CVE-2021-33271 affects D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410.

Q: How can CVE-2021-33271 be exploited?

CVE-2021-33271 can be exploited by sending a crafted POST request to the affected device.

Q: Are there any fixes available for CVE-2021-33271?

It is recommended to update the firmware of D-Link DIR-809 devices to the latest version provided by D-Link to mitigate CVE-2021-33271.

Published Dec 1, 2021

Updated

D-Link DIR-809 devices with firmware through DIR-809AxFW1.12WWB0320190410 were discovered to contain a stack buffer overflow vulnerability in the function sub80046EB4 in /formSetPortTr. This vulnerability is triggered via a crafted POST request.

Affected Software

2 affected components

Dlink Dir-809 Firmware<=1.12wwb03

Dlink Dir-809

Event History

Dec 1, 2021

CVE Published

via MITRE·09:20 PM

Data Sourced

via MITRE·09:20 PM

Description

Frequently Asked Questions

What is CVE-2021-33271?

CVE-2021-33271 is a stack buffer overflow vulnerability found in D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410.

How severe is CVE-2021-33271?

CVE-2021-33271 has a severity rating of 9.8, which is considered critical.

How does CVE-2021-33271 affect D-Link DIR-809 devices?

CVE-2021-33271 affects D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410.

How can CVE-2021-33271 be exploited?

CVE-2021-33271 can be exploited by sending a crafted POST request to the affected device.

Are there any fixes available for CVE-2021-33271?