CVE-2026-7748— Totolink N300RH setUpgradeFW 缓冲区溢出漏洞
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一、 漏洞 CVE-2026-7748 基础信息
漏洞信息
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Vulnerability Title
Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer overflow
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument FileName can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
来源: 美国国家漏洞数据库 NVD
受影响产品
二、漏洞 CVE-2026-7748 的公开POC
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- CVE-2026-7748 | Totolink N300RH 3.2.4-B20220812 POST Request /cgi-bin/cstecgi.cgi setUpgradeFW FileName buffer overflowvdb-entrytechnical-description
- Just a moment...third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-7748
同批安全公告 · Totolink · 2026-05-04 · 共 9 条
| CVE-2026-7747 | 9.8 CRITICAL | Totolink N300RH cstecgi.cgi 认证缓冲区溢出漏洞 |
| CVE-2026-7719 | 9.8 CRITICAL | Totolink WA300 cstecgi.cgi登录认证缓冲区溢出漏洞 |
| CVE-2026-7750 | 8.8 HIGH | Totolink N300RH CSTECGI.cgi POST请求缓冲区溢出漏洞 |
| CVE-2026-7749 | 8.8 HIGH | Totolink N300RH cstecgi.cgi缓冲区溢出漏洞 |
| CVE-2026-7717 | 8.8 HIGH | Totolink WA300 POST cstecgi.cgi上传模块缓冲区溢出漏洞 |
| CVE-2026-7721 | 6.3 MEDIUM | Totolink WA300 cstecgi.cgi NTP同步命令注入漏洞 |
| CVE-2026-7720 | 6.3 MEDIUM | Totolink WA300 CSTECGI.cgi 命令注入漏洞 |
| CVE-2026-7718 | 6.3 MEDIUM | Totolink WA300 cstecgi.cgi命令注入漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-7748
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