9.8
CRITICAL
CVE-2021-21913
D-LINK DIR-3040 WiFi Smart Mesh MQTT Command Execution Information Disclosure
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.

INFO

Published Date :

Sept. 23, 2021, 3:15 p.m.

Last Modified :

July 21, 2022, 11:45 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-21913 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Dlink dir-3040_firmware
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-21913.

URL Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361 Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-21913 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-21913 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Jul. 21, 2022

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 28, 2022

    Action Type Old Value New Value
    Added CWE Talos CWE-798
  • CVE Modified by [email protected]

    Apr. 19, 2022

    Action Type Old Value New Value
    Added CVSS V3 Talos AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
  • Initial Analysis by [email protected]

    Sep. 29, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361 No Types Assigned https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361 Exploit, Third Party Advisory
    Added CWE NIST CWE-798
    Added CPE Configuration AND OR *cpe:2.3:o:dlink:dir-3040_firmware:1.13b03:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dir-3040:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-21913 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-21913 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.31 }} -0.01%

score

0.70298

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
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Scope
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