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CVE-2026-114383

10, critical

TOTOLINK EX200 Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
10, critical critical CVSS v3.1
EPSS, next 30 days
0.7% higher than 50.6% of scored CVEs
Exploitation
No public evidence
Published
21 Oct 20262 days ago

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.

Details

Vendor
TOTOLINK
Product
EX200
Weakness
CWE-119 (opens in a new tab)
Status
Deferred
Updated
22 Oct 2026
Assigner
cna@vuldb.com

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

References 6

Other references 6

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other TOTOLINK CVEs

Every TOTOLINK CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-114575 TOTOLINK A950RG Injection Vulnerability EPSS 2% 10, critical
  • CVE-2026-114382 TOTOLINK EX200 Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability EPSS 0.7% 10, critical
  • CVE-2026-10131 Totolink OS Command Injection Vulnerability EPSS 1% 9.1, critical
  • CVE-2026-10132 Totolink Stack-based Buffer Overflow Vulnerability EPSS 0.9% 9.1, critical
  • CVE-2026-10133 Totolink Stack-based Buffer Overflow Vulnerability EPSS 0.9% 9.1, critical
  • CVE-2026-10135 Totolink OS Command Injection Vulnerability EPSS 1% 9.1, critical
  • CVE-2026-10136 Totolink Heap-based Buffer Overflow Vulnerability EPSS 0.9% 9.1, critical
  • CVE-2026-10137 Totolink Stack-based Buffer Overflow Vulnerability EPSS 0.9% 9.1, critical

Beyond this page

Is CVE-2026-114383 in your network?

This page tells you how dangerous CVE-2026-114383 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 23 Oct 2026, not the live upstream state.