What is CVE-2025-50666?

CVE-2025-50666 is a high-severity vulnerability in Dlink Di-8003, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2026-04-08.

How severe is CVE-2025-50666?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Dlink Di-8003

CVE-2025-50666

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of multiple parameters in the /web_post.asp endpoint. An attacker can exploit this vulnerability by sending a crafted HTTP GET request in paramete…

Vulnerability class: Buffer Overflow

EPSS: 0.006 (44.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Dlink Di-8003
Dlink Di-8003_firmware — versions 16.07.26a1
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cve@mitre.org (Vendor Advisory)
cve@mitre.org (Third Party Advisory)
cve@mitre.org

Frequently asked questions

What is CVE-2025-50666?: CVE-2025-50666 is a high-severity vulnerability in Dlink Di-8003, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2026-04-08.
How severe is CVE-2025-50666?: High severity. CVSS v3 base score is 7.5 out of 10.