CVE-2026-7749

HIGH EPSS 42.6%

Published May 4, 20261mo ago · Modified Jun 17, 20262w ago

7.4 CVSS 4.0

High

Published May 4, 2026 1mo ago

Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score

7.4

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

42.6% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 2

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety

CWE-120

References 5

lavender-bicycle-a5a.notion.site https://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-setWanConfig-34553a41781f80ed8500d9b8d54074f2
vuldb.com https://vuldb.com/submit/807203
vuldb.com https://vuldb.com/vuln/360924
vuldb.com https://vuldb.com/vuln/360924/cti
totolink.net https://www.totolink.net/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.