Buffer overflow in D-link Dir-816
CVE-2025-5624
A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been declared as critical. This vulnerability affects the function QoSPortSetup of the file /goform/QoSPortSetup. The manipulation of the argument port0_group/port0_remarker/ssi…
Vulnerability class: Buffer Overflow
EPSS: 0.024 (85.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- D-link Dir-816 — versions 1.10CNB05
Weakness classification (CWE)
References
- VDB-311110 | D-Link DIR-816 QoSPortSetup stack-based overflow (vdb-entry, technical-description)
- VDB-311110 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #589226 | D-Link DIR816 1.10CNB05 Stack-based Buffer Overflow (third-party-advisory)
- github.com/wudipjq/my_vuln/blob/main/D-Link5/vuln_53/53.md (exploit)
- www.dlink.com/ (product)
Frequently asked questions
- What is CVE-2025-5624?
- CVE-2025-5624 is a critical-severity vulnerability in D-link Dir-816, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-06-05.
- How severe is CVE-2025-5624?
- Critical severity. CVSS v3 base score is 9.8 out of 10.