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.

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…

Vulnerability class: Buffer Overflow

EPSS: 0.015 (71.4th 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)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

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.