CVE-2021-33271

CRITICAL

D-Link DIR-809 Firmware < 1.12wwb03 - Stack Buffer Overflow in /formSetPortTr

Title source: llm
STIX 2.1

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 sub_80046EB4 in /formSetPortTr. This vulnerability is triggered via a crafted POST request.

References (2)

Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.dlink.com/en/security-bulletin/
Exploit, Third Party Advisory x_refsource_misc
https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln11

Scores

CVSS v3 9.8
EPSS 0.0193
EPSS Percentile 83.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
dlink/dir-809_firmware < 1.12wwb03
Published Dec 01, 2021
Tracked Since Feb 18, 2026