CVE-2026-7747

CRITICAL 9.8

Totolink N300RH Parameter cstecgi.cgi loginauth buffer overflow

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

A security flaw has been discovered in Totolink N300RH 3.2.4-B20220812. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument Password results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

CWE	CWE-120 CWE-119
Vendor	totolink
Product	n300rh
Published	May 4, 2026

Stay Ahead of the Next One

Get instant alerts for totolink n300rh

Be the first to know when new critical vulnerabilities affecting totolink n300rh are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / N300RH

3.2.4-B20220812

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/360922 vuldb.com: https://vuldb.com/vuln/360922/cti vuldb.com: https://vuldb.com/submit/807201 lavender-bicycle-a5a.notion.site: https://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-loginauth_password-34553a41781f80c0ad36f4d95122fd40?pvs=73 totolink.net: https://www.totolink.net/

Credits

🔍 wxhwxhwxh_mie (VulDB User)