What is CVE-2021-21816?

CVE-2021-21816 is a medium-severity vulnerability in D-link, classified under Information Disclosure. CVSS score: 6.5/10. Published 2021-07-16.

How severe is CVE-2021-21816?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2021-21816 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in D-link

CVE-2021-21816

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…

Vulnerability class: Information Disclosure

EPSS: 0.772 (99.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

N/a D-link — versions D-LINK DIR-3040 1.13B03

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1281 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21816?: CVE-2021-21816 is a medium-severity vulnerability in D-link, classified under Information Disclosure. CVSS score: 6.5/10. Published 2021-07-16.
How severe is CVE-2021-21816?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2021-21816 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.