CVE-2026-94089 D-Link DIR-868L Authentication webfa_authentication.cgi strcpy stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the authentication handler via crafted credentials, potentially leading to code execution on D-Link DIR-868L routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-94089?
CVE-2026-94089 is a critical memory corruption vulnerability in D-Link DIR-868L, published on 20 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was determined in D-Link DIR-868L 2.01b05. This issue affects the function strcpy of the file /webfa_authentication.cgi of the component Authentication Handler. Executing a manipulation of the argument id/password can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.
Which versions are affected by CVE-2026-94089?
How do I fix CVE-2026-94089?
No fix has been published for CVE-2026-94089 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-2026-94089 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-94089 exists.
Sources
Also known as GHSA-pc7v-4cmj-hg88.