CVE-2021-3182

Name: CVE-2021-3182
Creator: NVD / NIST
Published: 2021-01-19T15:15:12.403+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2021-3182 is a high-severity vulnerability rated 8/10 on the CVSS scale. D-Link DCS-5220 devices have a buffer overflow. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

D-Link DCS-5220 devices have a buffer overflow. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Metrics

CVSS 3.1

8/10

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

EPSS Probability

0.91%

55.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dlink	Dcs-5220 Firmware	All versions

References

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10203Vendor Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10203Vendor Advisory

Timeline

Published: Jan 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3182?

D-Link DCS-5220 devices have a buffer overflow. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

How severe is CVE-2021-3182?

CVE-2021-3182 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3182?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-3182?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST