What is CVE-2021-21819?

CVE-2021-21819 is a high-severity vulnerability in Dlink Dir-3040, classified under OS Command Injection. CVSS score: 7.2/10. Published 2021-07-16.

How severe is CVE-2021-21819?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Dlink Dir-3040

CVE-2021-21819

A code execution vulnerability exists in the Libcli Test Environment functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger this vulnerability.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.029 (85.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/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-78 — OS Command Injection

References

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

Frequently asked questions

What is CVE-2021-21819?: CVE-2021-21819 is a high-severity vulnerability in Dlink Dir-3040, classified under OS Command Injection. CVSS score: 7.2/10. Published 2021-07-16.
How severe is CVE-2021-21819?: High severity. CVSS v3 base score is 7.2 out of 10.