CVE-2020-25506

Name: CVE-2020-25506
Creator: NVD / NIST
Published: 2021-02-02T13:15:12.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 99.97%

Last modified Jun 17, 2026

CVE-2020-25506 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. D-Link DNS-320 FW v2.06B01 Revision Ax is affected by command injection in the system_mgr.cgi component, which can lead to remote arbitrary code execution.. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.97% chance of exploitation in the next 30 days.

Description

D-Link DNS-320 FW v2.06B01 Revision Ax is affected by command injection in the system_mgr.cgi component, which can lead to remote arbitrary code execution.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

99.97%

100.0th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dlink	Dns-320 Firmware	2.06b01

References

https://gist.github.com/WinMin/6f63fd1ae95977e0e2d49bd4b5f00675Exploit, Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10183Vendor Advisory
https://www.dlink.com/en/security-bulletin/Vendor Advisory
https://gist.github.com/WinMin/6f63fd1ae95977e0e2d49bd4b5f00675Exploit, Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10183Vendor Advisory
https://www.dlink.com/en/security-bulletin/Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-25506US Government Resource

Timeline

Published: Feb 2, 2021
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-25506?

D-Link DNS-320 FW v2.06B01 Revision Ax is affected by command injection in the system_mgr.cgi component, which can lead to remote arbitrary code execution.

How severe is CVE-2020-25506?

CVE-2020-25506 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 99.97% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2020-25506?

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-2020-25506?

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

Scan your code now

Source: NVD / NIST