CVE-2021-21816

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 32.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-07-16 · updated 2026-06-17
Weakness: CWE-200

Description

An information disclosure vulnerability exists in the Syslog functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to the disclosure of sensitive information. An attacker can send an HTTP request to trigger this vulnerability.

Affected products

D-Link DIR-3040: 1.13b03

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1281
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1281

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