CVE-2024-34200Public exploitNetwork attack vector

Authenticated memory corruption via unchecked strcpy

Published May 9, 2024 · Updated Feb 13, 2025

Stack buffer overflow in TOTOLINK CP450 4.1.0cu.747_B20191224 allows remote authenticated users to compromise the appliance via CGI. The setIpQosRules handler passes the unchecked comment parameter to strcpy, which overwrites a fixed stack buffer. An authenticated management session is required; exploitation corrupts process memory and creates device-crash and code-execution conditions.

CVSS severity8.8
High
EPSS probability0.91%
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 compromise the appliance via CGI. The setIpQosRules handler passes the unchecked comment parameter to strcpy, which overwrites a fixed stack buffer. An authenticated management session is required; exploitation corrupts process memory and creates device-crash and code-execution conditions.

The record

CVE
CVE-2024-34200
Published
May 9, 2024
Updated
Feb 13, 2025
Vendor
TOTOLINK
Product
CP450
Classifications
CWE-125, T1210
Attack vector
network
Privileges
authenticated

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 privilegesauthenticated

What is affected?

TOTOLINK · CP450version=4.1.0cu.747_b20191224

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1210Exploitation of Remote Services

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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