Vulnerability · Published Sep 23, 2021 · Assigned by talos

CVE-2021-21913

Critical 10.0

In plain English

A critical-severity hard-coded credentials in D-Link. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 82% of all known vulnerabilities).

Severity (CVSS 3.0)10.0Critical

Exploit odds (30 days)2.2%top 17.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	D-Link	D-LINK DIR-3040 1.13B03

Weakness: CWE-798 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361 x_refsource_MISC