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CVE-2026-114383: Stack-based Buffer Overflow in TOTOLINK EX200

0
Critical
VulnerabilityCVE-2026-114383cvecve-2026-114383
Published: 10/21/2026 (10/21/2026, 21:45:18 UTC)
Source: CVE Database V5
Vendor/Project: TOTOLINK
Product: EX200

Description

A weakness has been identified in TOTOLINK EX200 5.2.3c.7200. This impacts the function setWiFiAclAddConfig of the file /cgi-bin/cstecgi.cgi of the component wireless.so. This manipulation of the argument macAddress causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

CVSS v4.0

Score 10.0critical

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
High
Subsq. Integrity
High
Subsq. Availability
High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

Affected software

TOTOLINK

EX200

Affected versions
=5.2.3c.7200

Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-10-21T11:26:32.468Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6ad936224d27ba8daa06ea5d

Added to database: 10/21/2026, 22:01:06 UTC

Last updated: 10/21/2026, 22:01:06 UTC

Views: 1

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