CVE-2021-21816

4.3 mediumEPSS 32%

Medium (4.3) in dlink dir-3040 firmware. EPSS 32% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

EPSS: 32% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWE: CWE-200
Published: 2021-07-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

dlink:dir-3040_firmware

References

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

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