CVE-2023-7220 CRITICAL

CVE-2023-7220: Totolink NR1800X cstecgi.cgi loginAuth stack-based overflow

Vendor Totolink
Product NR1800X
Weakness CWE-121
Published January 9, 2024
Last update June 17, 2025
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A vulnerability was found in Totolink NR1800X 9.1.0u.6279_B20210910 and classified as critical. Affected by this issue is the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument 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. VDB-249854 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

January 9, 2024 CVE published
June 17, 2025 Record updated