What is CVE-2021-21913?

CVE-2021-21913 is a critical-severity vulnerability in Dlink Dir-3040, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2021-09-23.

How severe is CVE-2021-21913?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Dlink Dir-3040

CVE-2021-21913

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.

EPSS: 0.022 (80.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Dlink Dir-3040
Dlink Dir-3040_firmware — versions 1.13b03
N/a D-link — versions D-LINK DIR-3040 1.13B03

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21913?: CVE-2021-21913 is a critical-severity vulnerability in Dlink Dir-3040, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2021-09-23.
How severe is CVE-2021-21913?: Critical severity. CVSS v3 base score is 9.8 out of 10.