CVE-2025-3993 — Vulnetix

CVE-2025-3993 PUBLISHED CVSS 8.699999809265137 HIGH

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.

EPSS 0.50% · 66.5th percentile

Risk Scores

CVSS 4.0

8.699999809265137

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

EPSS Score

0.50%

66.5th percentile

Affected Products

Vendor	Product	Versions
totolink	n150rt_firmware	3.4.0-b20190525
TOTOLINK	N150RT	3.4.0-B20190525

Exploit Intelligence

CIRCL seen: CVE-2025-3993 (circl-sighting)
CIRCL seen: CVE-2025-3993 (circl-sighting)
CIRCL seen: CVE-2025-3993 (circl-sighting)
VDB-306329 | TOTOLINK N150RT formWsc buffer overflow (circl)
VDB-306329 | CTI Indicators (IOB, IOC, IOA) (circl)
Submit #557944 | TOTOLINK N150RT V3.4.0-B20190525 Buffer Overflow (circl)
https://www.totolink.net/ (circl)
ET WEB_SPECIFIC_APPS Totolink BufferOverflow Attempt multiple URI endpoints submit-url Parameter Buffer Overflow Attempt (CVE-2025-3990, CVE-2025-3993) (emergingthreats)
ET WEB_SPECIFIC_APPS Totolink BufferOverflow Attempt multiple URI endpoints submit-url Parameter Buffer Overflow Attempt (CVE-2025-3990, CVE-2025-3993) (emergingthreats)
https://github.com/fizz-is-on-the-way/Iot_vuls/tree/main/N150RT/BufferOverflow_formWsc_1 (cve.org)

Timeline

Apr 26, 2025 PoC Published
Apr 28, 2025 EPSS Score
Apr 28, 2025 Coalition ESS Score
Apr 28, 2025 CVE Published
Apr 28, 2025 PoC Published
Apr 28, 2025 PoC Published
Apr 28, 2025 CVE Updated
Apr 29, 2025 Coalition ESS Score
May 7, 2025 Coalition ESS Score
May 8, 2025 PoC Published
May 10, 2025 EPSS Score
May 12, 2025 Coalition ESS Score

References

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