Buffer overflow in Qinguoyi Tinywebserver
CVE-2025-3266
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.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (50.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Qinguoyi Tinywebserver — versions 1.0
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry, Third Party Advisory)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2025-3266?
- CVE-2025-3266 is a high-severity vulnerability in Qinguoyi Tinywebserver, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.3/10. Published 2025-04-04.
- How severe is CVE-2025-3266?
- High severity. CVSS v3 base score is 7.3 out of 10.