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  4. CVE 2026 114383 totolink ex200 wirelessso cstecgicgi
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Back to active CVEs
Critical · CVSS 10.0CVE-2026-114383

TOTOLINK EX200 wireless.so cstecgi.cgi setWiFiAclAddConfig stack-based overflowCVE-2026-114383

Answer in brief

CVE-2026-114383 records a Critical severity (CVSS 10.0) vulnerability in TOTOLINK EX200 wireless.so cstecgi.cgi setWiFiAclAddConfig stack-based overflow. The current sources do not mark it as known exploited. The current feed maps TOTOLINK/EX200 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 21, 2026Updated Oct 21, 2026Source checked Oct 21, 2026First seen by HOL Oct 21, 2026Material review Oct 21, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 10.0
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 10.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps TOTOLINK/EX200 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
TOTOLINK/EX200generic5.2.3c.7200Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for TOTOLINK/EX200.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 21, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencetotolink.net
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • TOTOLINK EX200 lan.so cstecgi.cgi setStaticDhcpConfig stack-based overflowSame totolink/ex200 package

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-121, CWE-119
Source
CVE List V5
Source checked
Oct 21, 2026
References
6 linked sources
Open source record