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CVE-2026-114383

CRITICAL
10.0NVD

Summary

generated automatically from NVD data

CVE-2026-114383 affects the TOTOLINK EX200 running version 5.2.3c.7200. The setWiFiAclAddConfig function in /cgi-bin/cstecgi.cgi (component wireless.so) mishandles the macAddress argument, causing a stack-based buffer overflow (CWE-119) that can be triggered remotely. The description notes that a public exploit is available. The flaw is rated CRITICAL with a CVSS v3.1 score of 10.0.

NVD 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.

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EPSS · FIRST.org

0.65%probability of exploitation in the next 30 days

Higher than 50% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-24, recomputed daily by FIRST.org.

In-depth analysis on cveo.tech

We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.

CVSS v3.1 Score

10.0
/ 10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Information

Published
21 oct. 2026
Updated
22 oct. 2026
Status
Deferred
Source
cna@vuldb.com

Weaknesses (CWE)

CWE-119CWE-121

Similar CVEs

Other vulnerabilities of type CWE-119

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