Buffer overflow in Totolink T6
CVE-2023-7221
A vulnerability was found in Totolink T6 4.1.9cu.5241_B20210923. It has been classified as critical. This affects the function main of the file /cgi-bin/cstecgi.cgi?action=login of the component HTTP POST Request Handler. The manipulation of the argument v41 leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-249855. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
EPSS: 0.015 (72.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Totolink T6 — versions 4.1.9cu.5241_B20210923
- Totolink T6_firmware — versions 4.1.9cu.5241_b20210923
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, Third Party Advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit, broken-link)
Frequently asked questions
- What is CVE-2023-7221?
- CVE-2023-7221 is a critical-severity vulnerability in Totolink T6, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2024-01-09.
- How severe is CVE-2023-7221?
- Critical severity. CVSS v3 base score is 9.8 out of 10.