CVE-2024-34213Public exploitNetwork attack vector

Memory corruption via unchecked comment copy

Published May 9, 2024 · Updated Feb 13, 2025

Stack-based buffer overflow in TOTOLINK CP450 4.1.0cu.747_B20191224 allows remote attackers to corrupt memory via a crafted request. SetPortForwardRules passes the unchecked comment parameter from a POST to strcpy, which writes beyond the destination stack buffer. The endpoint requires no prior privileges or user interaction, while public evidence does not demonstrate code execution or persistent device failure.

CVSS severity9.8
Critical
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in TOTOLINK CP450 4.1.0cu.747_B20191224 allows remote attackers to corrupt memory via a crafted request. SetPortForwardRules passes the unchecked comment parameter from a POST to strcpy, which writes beyond the destination stack buffer. The endpoint requires no prior privileges or user interaction, while public evidence does not demonstrate code execution or persistent device failure.

The record

CVE
CVE-2024-34213
Published
May 9, 2024
Updated
Feb 13, 2025
Vendor
TOTOLINK
Product
CP450
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 privilegesunauthenticated

What is affected?

TOTOLINK · CP450version=4.1.0cu.747_b20191224

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo