CVE-2024-0996Public exploitNetwork attack vector

Memory corruption via crafted funcpara1 input

Published Jan 29, 2024 · Updated Jun 17, 2025

Stack-based buffer overflow in Tenda i9 1.0.0.9(4122) allows remote authenticated users to corrupt httpd memory via crafted funcpara1 input. The formSetCfm handler processes that request-body value at /goform/setcfm, but public sources do not disclose the exact unsafe copy operation or buffer size. The CNA assessment requires high privileges; code execution and a specific operational consequence have not been established.

CVSS severity9.8
Critical
EPSS probability1.55%
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 i9 1.0.0.9(4122) allows remote authenticated users to corrupt httpd memory via crafted funcpara1 input. The formSetCfm handler processes that request-body value at /goform/setcfm, but public sources do not disclose the exact unsafe copy operation or buffer size. The CNA assessment requires high privileges; code execution and a specific operational consequence have not been established.

The record

CVE
CVE-2024-0996
Published
Jan 29, 2024
Updated
Jun 17, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
i9 Firmware
Classifications
CWE-787, CWE-121
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 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=1.0.0.9(4122)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Shenzhen Tenda Technology Co., Ltd. · i9 Firmwareversion=1.0.0.9(4122)

Published CVSS scores

8.3VulDBAV:N/AC:L/Au:M/C:C/I:C/A:C
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.2VulDBCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow

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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