CVE-2024-3874Public exploitNetwork attack vector

Authenticated memory corruption via remoteIP stack overflow

Published Apr 16, 2024 · Updated Aug 1, 2024

Stack-based buffer overflow in Tenda W20E 15.11.0.6 allows remote authenticated users to corrupt memory via a crafted remoteIP value. The formSetRemoteWebManage handler accepts remoteIP at /goform/SetRemoteWebManage without an effective length bound, overflowing its stack buffer. Reaching the handler requires authenticated access to the router's web management interface; exploitation compromises confidentiality, integrity, and availability.

CVSS severity8.8
High
EPSS probability1.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Tenda W20E 15.11.0.6 allows remote authenticated users to corrupt memory via a crafted remoteIP value. The formSetRemoteWebManage handler accepts remoteIP at /goform/SetRemoteWebManage without an effective length bound, overflowing its stack buffer. Reaching the handler requires authenticated access to the router's web management interface; exploitation compromises confidentiality, integrity, and availability.

The record

CVE
CVE-2024-3874
Published
Apr 16, 2024
Updated
Aug 1, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
W20E
Classifications
CWE-121, CWE-787, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=15.11.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · W20Eversion=15.11.0.6

Published CVSS scores

9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8VulDBCVSS: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-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
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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