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Vulnerabilities

Vulnerability · CVE-2026-114383

A weakness has been identified in TOTOLINK EX200 5.2.3c.7200.

Published Oct 21, 2026 · catalog updated Oct 22, 2026 · Totolink

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-114383. EPSS is 0.65%. Act only if a listed version of Totolink is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical10.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.65%
Remediation
Vendor / distro source
Affected products
vendor Totolink

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Totolinkversion unspecified

How to fix CVE-2026-114383

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-114383. EPSS is 0.65%. Act only if a listed version of Totolink is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-119: Buffer Overflow; CWE-121: Stack-based Buffer Overflow. EPSS 0.65%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 21, 2026 · NIST NVD

    Detected

    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.

  2. Oct 22, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-114383

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-114383

    30-day exploitation probability 0.65%

    first.org
  • EUVDVulnerability recordEUVD-2026-107581

    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

    euvd.enisa.europa.eu
  • NIST NVDVulnerability recordCVE-2026-114383

    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

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • NIST NVDOct 22, 2026
  • CVE.orgOct 22, 2026
  • EUVDOct 22, 2026