Skip to main content
HIGH

CVE-2025-5621

CVSS v3

7.3

HIGH

EPSS Score

7.5 %

exploit probability, as of 2026-10-05

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability has been found in D-Link DIR-816 1.10CNB05 and classified as critical. Affected by this vulnerability is the function qosClassifier of the file /goform/qosClassifier. The manipulation of the argument dip_address/sip_address leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Technical details

Published
2025-06-05
Last Modified
2025-06-06

Frequently asked questions

What is CVE-2025-5621?

A vulnerability has been found in D-Link DIR-816 1.10CNB05 and classified as critical. Affected by this vulnerability is the function qosClassifier of the file /goform/qosClassifier. The manipulation of the argument dip_address/sip_address leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Is CVE-2025-5621 actively exploited?

Active exploitation of CVE-2025-5621 has not been confirmed. Its EPSS score was 7.5% on 2026-10-05, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-5621?

CVE-2025-5621 has a CVSS v3 base score of 7.3 (HIGH severity).

Is CVE-2025-5621 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

Check an IPSearch CVEsSIEM & TIP integrations

No credit card required · 50 free checks/month · Free API key

Other 2025 vulnerabilities worth triaging

Ranked by exploit probability (EPSS).

Back to CVE Database