CVE-2026-7247 D-Link DI-8100 File Extension file_exten.asp file_exten_asp buffer overflow
Remote attackers can trigger a buffer overflow in the D-Link DI-8100 router's file extension handler, potentially leading to code execution or service disruption.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7247?
CVE-2026-7247 is a high-severity memory corruption vulnerability in D-Link DI-8100, published on 28 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-7247?
It affects 1 product.
Products include Dlink Di-8100 Firmware.
How do I fix CVE-2026-7247?
No fix has been published for CVE-2026-7247 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-7247 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7247 exists.
Other vulnerabilities in D-Link DI-8100
- CVE-2025-44083 Auth bypass in n/a
- CVE-2026-7853 D-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflow
- CVE-2026-7854 D-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buffer overflow
- CVE-2026-7248 D-Link DI-8100 CGI Endpoint tgfile.htm tgfile_htm buffer overflow
- CVE-2026-7855 D-Link DI-8100 HTTP Request tggl.asp tggl_asp buffer overflow
Sources
Also known as GHSA-8j59-4p62-3qc9.