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CVE-2021-33265 Details

Description

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_80046eb4 in /formSetPortTr. This vulnerability is triggered via a crafted POST request.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln05	CVE	ExploitThird Party Advisory
https://www.dlink.com/en/security-bulletin/	CVE	Vendor Advisory
https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln05	[email protected]	ExploitThird Party Advisory
https://www.dlink.com/en/security-bulletin/	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
dlink dir-809 firmware	<= 1.12wwb03
CPE cpe:2.3:o:dlink:dir-809_firmware:::::::: Remediation No remediation found in references.
dlink dir-809	All versions
CPE cpe:2.3:h:dlink:dir-809:-:::::::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Dec 2, 2021	Initial Analysis	[email protected]