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Vulnerability record · CVE-2025-50647 · published 8 April 2026

CVE-2025-50647: Dlink di-8003 firmware classic buffer overflow vulnerability

Dlink · Di 8003 Firmware

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1, specifically in the handling of the wans parameter in the qos.asp endpoint.

7.5 CVSS 3.1 High EPSS 0.52% · top 58.4% CWE-120 · Classic buffer overflow
7.5CVSS 3.1 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
25 Jul 2026Last modified by NVD

Description

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1, specifically in the handling of the wans parameter in the qos.asp endpoint.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md Third Party Advisory
https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10505
https://www.dlink.com/en/security-bulletin/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-52759Dlink di-8003 firmware classic buffer overflow vulnerabilityD-LINK DI-8003 v16.07.26A1 was discovered to contain a buffer overflow via the ip parameter in the ip_position_asp function.EPSS 5.8%8.7CVE-2024-11048Dlink di-8003 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8003 16.07.16A1. It has been rated as critical. Affected by this issue is the function dbsrv_asp of the file /…EPSS 1.2%8.7CVE-2024-11047Dlink di-8003 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8003 16.07.16A1. It has been declared as critical. Affected by this vulnerability is the function upgrade_filt…EPSS 1.2%7.5CVE-2025-50673Dlink di-8003 firmware classic buffer overflow vulnerabilityA buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the http_lanport parameter in the /webgl.asp endpoint.EPSS 0.41%7.5CVE-2025-50664Dlink di-8003 firmware stack-based buffer overflow vulnerabilityA buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of parameters in the /user_group.asp endpoint. The attac…EPSS 0.61%7.5CVE-2025-50665Dlink di-8003 firmware classic buffer overflow vulnerabilityA buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of input parameters in the /web_keyword.asp endpoint. An…EPSS 0.60%7.5CVE-2025-50666Dlink di-8003 firmware classic buffer overflow vulnerabilityA 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…EPSS 0.60%7.5CVE-2025-50667Dlink di-8003 firmware classic buffer overflow vulnerabilityA buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the iface parameter in the /wan_line_detection.asp en…EPSS 0.41%

Source: NIST National Vulnerability Database (record CVE-2025-50647), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.