CVE-2025-4883 D-Link DI-8100 Connection Limit Page ctxz.asp ctxz_asp stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the D-Link DI-8100 router's connection limit page, potentially leading to arbitrary code execution.
- 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-2025-4883?
CVE-2025-4883 is a high-severity memory corruption vulnerability in D-Link DI-8100, published on 18 May 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability was found in D-Link DI-8100 16.07.26A1. It has been declared as critical. This vulnerability affects the function ctxz_asp of the file /ctxz.asp of the component Connection Limit Page. The manipulation of the argument def/defTcp/defUdp/defIcmp/defOther leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-4883?
It affects 1 product.
Products include Dlink Di-8100g Firmware.
How do I fix CVE-2025-4883?
No fix has been published for CVE-2025-4883 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-2025-4883 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4883 exists.
Other vulnerabilities in D-Link DI-8100
Sources
Also known as GHSA-rc3j-9c9w-j5qc.