CVE-2025-5623

9.3 criticalEPSS 19%

Critical (9.3) in dlink dir-816 firmware. EPSS 19% chance of exploitation in the next 30 days.

A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been classified as critical. This affects the function qosClassifier of the file /goform/qosClassifier. The manipulation of the argument dip_address/sip_address leads to stack-based buffer overflow. It is possible to initiate the attack 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

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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: 19% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
CWEs: CWE-787, CWE-119, CWE-121
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