CVE-2024-31812Public exploit

Wi-Fi credential disclosure via unauthenticated configuration request

Published Apr 8, 2024 · Updated Aug 2, 2024

Information disclosure in TOTOLINK EX200 Firmware 4.0.3c.7646_B20201211 allows remote attackers to read Wi-Fi credentials. The getWiFiExtenderConfig function returns the configured Wi-Fi SSID and password without verifying an authenticated login session. Access requires reachability to the extender's adjacent network interface; no integrity or availability impact is reported.

CVSS severity6.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in TOTOLINK EX200 Firmware 4.0.3c.7646_B20201211 allows remote attackers to read Wi-Fi credentials. The getWiFiExtenderConfig function returns the configured Wi-Fi SSID and password without verifying an authenticated login session. Access requires reachability to the extender's adjacent network interface; no integrity or availability impact is reported.

The record

CVE
CVE-2024-31812
Published
Apr 8, 2024
Updated
Aug 2, 2024
Vendor
TOTOLINK
Product
EX200 Firmware
Classifications
CWE-75, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0.3c.7646_b20201211

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

TOTOLINK · EX200 Firmwareversion=4.0.3c.7646_b20201211

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-75Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
T1190Exploit Public-Facing Application

Public exploit references

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Technologies

Your stack

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Your stack

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