CVE-2025-7908 D-Link DI-8100 jhttpd ddns.asp sprintf stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the D-Link DI-8100 router's jhttpd service via the ddns.asp endpoint, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-7908?
CVE-2025-7908 is a high-severity memory corruption vulnerability in D-Link DI-8100, published on 20 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in D-Link DI-8100 1.0. It has been declared as critical. Affected by this vulnerability is the function sprintf of the file /ddns.asp?opt=add of the component jhttpd. The manipulation of the argument mx leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-7908?
It affects 1 product.
Products include Dlink Di-8100 Firmware.
How do I fix CVE-2025-7908?
No fix has been published for CVE-2025-7908 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-2025-7908 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7908 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-ggpm-9q87-cq9w.