CVE-2021-21913

CRITICAL

Dlink Dir-3040 Firmware - Hard-coded Credentials

Title source: rule

Description

An information disclosure vulnerability exists in the WiFi Smart Mesh functionality of D-LINK DIR-3040 1.13B03. A specially-crafted network request can lead to command execution. An attacker can connect to the MQTT service to trigger this vulnerability.

Scores

CVSS v3 9.8
EPSS 0.0069
EPSS Percentile 71.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-798
Status published

Affected Products (1)

dlink/dir-3040_firmware

Timeline

Published Sep 23, 2021
Tracked Since Feb 18, 2026