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 parameters such as name, en, user_id, log, and time.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (48.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Dlink Di-8003
- Dlink Di-8003 Firmware — versions 16.07.26a1
Weakness classification (CWE)
References
- www.dlink.com/en/security-bulletin/ (Vendor Advisory)
- github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md (Third Party Advisory)
- supportannouncement.us.dlink.com/security/publication.aspx
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.