CVE-2025-3266 qinguoyi TinyWebServer http_conn.cpp stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in TinyWebServer via manipulated name or password arguments, potentially leading to code execution or service disruption.
- 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-2025-3266?
CVE-2025-3266 is a medium-severity memory corruption vulnerability in qinguoyi TinyWebServer, published on 4 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability, which was classified as critical, has been found in qinguoyi TinyWebServer up to 1.0. Affected by this issue is some unknown functionality of the file /http/http_conn.cpp. The manipulation of the argument name/password leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-3266?
It affects 1 product.
Products include Qinguoyi Tinywebserver.
How do I fix CVE-2025-3266?
No fix has been published for CVE-2025-3266 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-2025-3266 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3266 exists.
Other vulnerabilities in qinguoyi TinyWebServer
Sources
Also known as GHSA-8cmp-jx7c-f587.