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Vulnerability record · CVE-2026-7247 · published 28 April 2026

CVE-2026-7247: Dlink di-8100 firmware memory buffer overflow vulnerability

Dlink · Di 8100 Firmware

A vulnerability has been found in D-Link DI-8100 16.07.26A1. Affected by this issue is the function file_exten_asp of the file file_exten.asp of the component File Extension Handler. The manipulation of the argument Name leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

7.3 CVSS 4.0 High EPSS 1.2% · top 32.0% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
7.3CVSS 4.0 base score, v2 8.3
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability has been found in D-Link DI-8100 16.07.26A1. Affected by this issue is the function file_exten_asp of the file file_exten.asp of the component File Extension Handler. The manipulation of the argument Name leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

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

References

LinkTags
https://github.com/draw-ctf/report/blob/main/DI-8100/file_exten_asp_overflow.md ExploitThird Party Advisory
https://vuldb.com/submit/802868 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/359856 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/359856/cti Permissions RequiredVDB Entry
https://www.dlink.com/ Product

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Related vulnerabilities

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

9.8CVE-2025-44083Dlink di-8100 firmware improper authentication vulnerabilityAn issue in D-Link DI-8100 16.07.26A1 allows a remote attacker to bypass administrator login authenticationEPSS 0.82%8.9CVE-2026-7854Dlink di-8100 firmware memory buffer overflow vulnerabilityA security vulnerability has been detected in D-Link DI-8100 16.07.26A1. Affected by this vulnerability is the function url_rule_asp of the file /url…EPSS 1.9%8.9CVE-2026-7853Dlink di-8100 firmware memory buffer overflow vulnerabilityA weakness has been identified in D-Link DI-8100 16.07.26A1. Affected is the function sprintf of the file /auto_reboot.asp of the component HTTP Hand…EPSS 1.9%8.9CVE-2026-7248Dlink di-8100 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8100 16.07.26A1. This affects the function tgfile_htm of the file tgfile.htm of the component CGI Endpoint. Th…EPSS 3.8%8.7CVE-2025-5228Dlink di-8100 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8100 up to 20250523. It has been classified as critical. Affected is the function httpd_get_parm of the file /…EPSS 2.9%8.7CVE-2025-3538Dlink di-8100 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8100 16.07.26A1. It has been rated as critical. This issue affects the function auth_asp of the file /auth.asp…EPSS 13%7.5CVE-2025-52222Dlink di-8100 firmware classic buffer overflow vulnerabilityD-Link DI-8003 v16.07.26A1, DI-8500 v16.07.26A1; DI-8003G v17.12.21A1, DI-8200G v17.12.20A1, DI-8200 v16.07.26A1, DI-8400 v16.07.26A1, DI-8004w v16.0…EPSS 0.33%7.5CVE-2025-4544Dlink di-8100 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8100 up to 16.07.26A1 and classified as critical. This issue affects some unknown processing of the file /ddos…EPSS 11%

Source: NIST National Vulnerability Database (record CVE-2026-7247), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.