CVE-2024-34203Public exploitNetwork attack vector

Authenticated service interruption via unchecked language parameter

Published May 9, 2024 · Updated Feb 13, 2025

Stack buffer overflow in TOTOLINK CP450 4.1.0cu.747_B20191224 allows remote authenticated users to alter state or interrupt service. setLanguageCfg passes the unchecked langType value to sprintf for a fixed stack destination, so an overlong value overwrites adjacent stack memory. An authenticated management session with high privileges is required; the documented consequences are limited integrity loss and service interruption.

CVSS severity3.8
Low
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in TOTOLINK CP450 4.1.0cu.747_B20191224 allows remote authenticated users to alter state or interrupt service. setLanguageCfg passes the unchecked langType value to sprintf for a fixed stack destination, so an overlong value overwrites adjacent stack memory. An authenticated management session with high privileges is required; the documented consequences are limited integrity loss and service interruption.

The record

CVE
CVE-2024-34203
Published
May 9, 2024
Updated
Feb 13, 2025
Vendor
TOTOLINK
Product
CP450
Classifications
CWE-121, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record 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=4.1.0cu.747_B20191224

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

TOTOLINK · CP450version=4.1.0cu.747_B20191224

Published CVSS scores

3.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L

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)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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Technologies

Your stack

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Your stack

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