CVE-2026-7749

HIGH 8.8

Totolink N300RH POST Request cstecgi.cgi setWanConfig buffer overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

A security vulnerability has been detected in Totolink N300RH 3.2.4-B20220812. This affects the function setWanConfig of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument priDns leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.

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

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/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/360924 vuldb.com: https://vuldb.com/vuln/360924/cti vuldb.com: https://vuldb.com/submit/807203 lavender-bicycle-a5a.notion.site: https://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-setWanConfig-34553a41781f80ed8500d9b8d54074f2 totolink.net: https://www.totolink.net/

Credits

🔍 wxhwxhwxh_mie (VulDB User)