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CVE-2026-7748

HIGH

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published5/4/2026

Last Modified5/4/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-119CWE-120

References

https://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-setUpgradeFW-34553a41781f80abb1d1c627d7ff4329?pvs=73(cna@vuldb.com)

https://vuldb.com/submit/807202(cna@vuldb.com)

https://vuldb.com/vuln/360923(cna@vuldb.com)

https://vuldb.com/vuln/360923/cti(cna@vuldb.com)

https://www.totolink.net/(cna@vuldb.com)

IOC Correlations

No correlations recorded

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