CVE-2026-7218

HIGH

Totolink N300RT libapmib.so formWsc is_cmd_string_valid buffer overflow

Title source: cna

Description

A vulnerability was detected in Totolink N300RT 3.4.0-B20250430. The impacted element is the function is_cmd_string_valid of the file /boafrm/formWsc of the component libapmib.so. Performing a manipulation of the argument localPin results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-359818 | Totolink N300RT libapmib.so formWsc is_cmd_string_valid buffer overflow

https://vuldb.com/vuln/359818

Signature, Permissions Required signature permissions-required

VDB-359818 | CTI Indicators (IOB, IOC, IOA)

https://vuldb.com/vuln/359818/cti

Third Party Advisory third-party-advisory

Submit #802127 | Totolink N300RT Router V3.4.0-B20250430 Buffer Overflow

https://vuldb.com/submit/802127

Exploit exploit

https://github.com/xiaohaiyang-ai/TOTOLINK-N300RT-Buffer-Overflow

View Exploit ZIP pw:eip

Product product

https://www.totolink.net/

Scores

CVSS v3 7.2

EPSS 0.0046

EPSS Percentile 36.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-119 CWE-120

Status published

Products (1)

Totolink/N300RT 3.4.0-B20250430

Published Apr 28, 2026

Tracked Since Apr 28, 2026