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Vulnerability record · CVE-2025-3993 · published 28 April 2025

CVE-2025-3993: Totolink n150rt firmware memory buffer overflow vulnerability

TTotolink · N150rt Firmware

A vulnerability was found in TOTOLINK N150RT 3.4.0-B20190525 and classified as critical. This issue affects some unknown processing of the file /boafrm/formWsc. The manipulation of the argument submit-url leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

8.7 CVSS 4.0 High EPSS 1.0% · top 37.4% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
8.7CVSS 4.0 base score, v2 9.0
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was found in TOTOLINK N150RT 3.4.0-B20190525 and classified as critical. This issue affects some unknown processing of the file /boafrm/formWsc. The manipulation of the argument submit-url leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

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:X/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/fizz-is-on-the-way/Iot_vuls/tree/main/N150RT/BufferOverflow_formWsc_1 Exploit
https://vuldb.com/?ctiid.306329 Permissions RequiredVDB Entry
https://vuldb.com/?id.306329 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.557944 Third Party AdvisoryVDB Entry
https://www.totolink.net/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-3993), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.