CVE-2025-4342 D-Link DIR-600L formEasySetupWizard3 buffer overflow
Remote attackers can trigger a buffer overflow in the setup wizard to execute arbitrary code on unsupported D-Link DIR-600L routers.
- 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-2025-4342?
CVE-2025-4342 is a high-severity memory corruption vulnerability in D-Link DIR-600L, published on 6 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability, which was classified as critical, has been found in D-Link DIR-600L up to 2.07B01. Affected by this issue is the function formEasySetupWizard3. The manipulation of the argument host leads to buffer overflow. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.
Which versions are affected by CVE-2025-4342?
It affects 1 product.
Products include Dlink Dir-600l Firmware.
How do I fix CVE-2025-4342?
No fix has been published for CVE-2025-4342 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-2025-4342 being exploited?
There is no known exploitation of CVE-2025-4342 in the wild and no public exploit code.
Other vulnerabilities in D-Link DIR-600L
Sources
Also known as GHSA-rcr7-jhhc-q8xj.