cbcvebase.
CVE-2025-3991
published 2025-04-28

CVE-2025-3991: A vulnerability, which was classified as critical, was found in TOTOLINK N150RT 3.4.0-B20190525. This affects an unknown part of the file…

PriorityP263high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
0.85%
53.6th percentile
A vulnerability, which was classified as critical, was found in TOTOLINK N150RT 3.4.0-B20190525. This affects an unknown part of the file /boafrm/formWdsEncrypt. The manipulation of the argument submit-url leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Affected

2 ranges
VendorProductVersion rangeFixed in
totolinkn150rt——
totolinkn150rt_firmware——

Detection & IOCsextracted from sources · hover to see the quote

path/boafrm/formWdsEncrypt↗
  • →Detect POST requests to /boafrm/form(Vlan|WdsEncrypt|Wlwds|Wsc) endpoints with a 'submit-url' parameter value exceeding 100 characters in the request body — indicative of a buffer overflow attempt.
  • →Attack is initiated remotely via HTTP POST to the vulnerable endpoint; traffic is plaintext (no TLS), making perimeter and internal network inspection effective.
  • →The manipulation of the argument submit-url leads to buffer overflow; focus detection on oversized submit-url parameter values in POST body.
  • ·The Snort/Suricata rule (sid:2062172) covers CVE-2025-3990, CVE-2025-3991, CVE-2025-3992, and CVE-2025-3993 collectively across multiple URI endpoints (Vlan, WdsEncrypt, Wlwds, Wsc); it is not exclusive to CVE-2025-3991 (/boafrm/formWdsEncrypt) alone.
  • ·The affected product is TOTOLINK N150RT firmware version 3.4.0-B20190525; ensure detection is scoped to this device/firmware in environments where multiple TOTOLINK models are present.

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.08.7HIGHCVSS: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:X/V:X/RE:X/U:X
nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C
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