CVE-2024-31815Public exploitNetwork attack vector

Configuration and credential disclosure via unauthenticated export

Published Apr 8, 2024 · Updated Oct 28, 2024

Authorization bypass in TOTOLINK EX200 Firmware 4.0.3c.7314_B20191204 allows remote attackers to download its configuration file. The /cgi-bin/ExportSettings.sh handler returns the apmib configuration backup without enforcing authentication. Network access to the extender is sufficient, and decoding the downloaded backup exposes the web-interface username and password.

CVSS severity9.1
Critical
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in TOTOLINK EX200 Firmware 4.0.3c.7314_B20191204 allows remote attackers to download its configuration file. The /cgi-bin/ExportSettings.sh handler returns the apmib configuration backup without enforcing authentication. Network access to the extender is sufficient, and decoding the downloaded backup exposes the web-interface username and password.

The record

CVE
CVE-2024-31815
Published
Apr 8, 2024
Updated
Oct 28, 2024
Vendor
TOTOLINK
Product
EX200 Firmware
Classifications
CWE-639, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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=V4.0.3c.7314_B20191204

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · EX200 Firmwareversion=V4.0.3c.7314_B20191204

Published CVSS scores

9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1552.001Credentials In Files

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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