Vulnerability · Published Jul 16, 2021 · Assigned by talos

CVE-2021-21819

Critical 9.1

In plain English

A critical-severity OS command injection 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 2.9% (higher than 87% of all known vulnerabilities).

Severity (CVSS 3.0)9.1Critical

Exploit odds (30 days)2.9%top 13.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

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

Weakness: CWE-78 · Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1284 x_refsource_MISC