CVE-2024-40051Public exploitNetwork attack vector

Unauthenticated file read via unfiltered filename

Published Jul 22, 2024 · Updated Aug 16, 2024

Path traversal in Teclink Development Limited IP-guard 4.81.0307.0 allows remote attackers to read arbitrary files via a crafted file name. The download.attachment method passes its file name parameter to file retrieval without filtering traversal sequences. No authentication or user interaction is required, and successful requests disclose files readable by the IP-guard service account.

CVSS severity7.5
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Teclink Development Limited IP-guard 4.81.0307.0 allows remote attackers to read arbitrary files via a crafted file name. The download.attachment method passes its file name parameter to file retrieval without filtering traversal sequences. No authentication or user interaction is required, and successful requests disclose files readable by the IP-guard service account.

The record

CVE
CVE-2024-40051
Published
Jul 22, 2024
Updated
Aug 16, 2024
Vendor
Teclink Development Limited
Product
IP-guard
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 16, 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=4.81.0307.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Teclink Development Limited · IP-guardversion=4.81.0307.0

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NVDCVSS:3.1/AV:N/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

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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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

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Your stack

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