CVE-2021-33269: Buffer Overflow
First published: Wed Dec 01 2021(Updated: )
D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN_8004776c in /formVirtualServ. This vulnerability is triggered via a crafted POST request.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Dlink Dir-809 Firmware | <=1.12wwb03 | |
| Dlink Dir-809 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-33269?
CVE-2021-33269 is a vulnerability found in D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 that allows for a stack buffer overflow via a crafted POST request.
How severe is CVE-2021-33269?
CVE-2021-33269 has a severity rating of 9.8 (Critical).
How does CVE-2021-33269 affect D-Link DIR-809 devices?
CVE-2021-33269 affects D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410.
How can I fix CVE-2021-33269?
To fix CVE-2021-33269, update your D-Link DIR-809 device firmware to a version that does not have the vulnerability.
Where can I find more information about CVE-2021-33269?
You can find more information about CVE-2021-33269 in the links provided: [https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln01](https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln01) and [https://www.dlink.com/en/security-bulletin/](https://www.dlink.com/en/security-bulletin/).
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