CVE-2025-5621

6.9 mediumEPSS 5.4%

Medium (6.9) in dlink dir-816 firmware. EPSS 5.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

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

EPSS: 5.4% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
CWEs: CWE-78, CWE-77
Published: 2025-06-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

dlink:dir-816_firmware

References

Check your stack JSON