CVE-2024-4495Network attack vector

Authenticated memory corruption via crafted index

Published May 5, 2024 · Updated Aug 1, 2024

Stack-based buffer overflow in Tenda i21 1.0.0.14(4656) allows remote authenticated users to corrupt process memory via index. Public records identify the formWifiMacFilterGet handler and its attacker-controlled index argument, but do not disclose the exact copy operation or stack-buffer size. Low-privileged access to the network management interface is required; successful exploitation can interrupt the service or alter its execution.

CVSS severity8.8
High
EPSS probability1.45%
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 i21 1.0.0.14(4656) allows remote authenticated users to corrupt process memory via index. Public records identify the formWifiMacFilterGet handler and its attacker-controlled index argument, but do not disclose the exact copy operation or stack-buffer size. Low-privileged access to the network management interface is required; successful exploitation can interrupt the service or alter its execution.

The record

CVE
CVE-2024-4495
Published
May 5, 2024
Updated
Aug 1, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
i21
Classifications
CWE-121, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 5, 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=1.0.0.14(4656)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · i21version=1.0.0.14(4656)

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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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