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CVSS 8.8 · High
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I. Basic Information for CVE-2026-7748
Vulnerability Information

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Vulnerability Title
Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer overflow
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
TotolinkN300RH 3.2.4-B20220812 cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*
II. Public POCs for CVE-2026-7748
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III. Intelligence Information for CVE-2026-7748
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IV. Related Vulnerabilities
V. Comments for CVE-2026-7748

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