CVE-2024-4251

Name: CVE-2024-4251
Creator: NVD / NIST
Published: 2024-04-27T13:15:09.85+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.35%

Last modified Jun 17, 2026

CVE-2024-4251 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability was found in Tenda i21 1.0.0.14(4656). It has been rated as critical. EPSS estimates a 1.35% chance of exploitation in the next 30 days.

Description

A vulnerability was found in Tenda i21 1.0.0.14(4656). It has been rated as critical. Affected by this issue is the function fromDhcpSetSer of the file /goform/DhcpSetSe. The manipulation of the argument dhcpStartIp/dhcpEndIp/dhcpGw/dhcpMask/dhcpLeaseTime/dhcpDns1/dhcpDns2 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-262142 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.35%

67.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tenda	I21 Firmware	1.0.0.14\(4656\)

References

https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/fromDhcpSetSer.mdBroken Link
https://vuldb.com/?ctiid.262142Permissions Required, Third Party Advisory, VDB Entry
https://vuldb.com/?id.262142Third Party Advisory, VDB Entry
https://vuldb.com/?submit.319836Third Party Advisory, VDB Entry
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/fromDhcpSetSer.mdBroken Link
https://vuldb.com/?ctiid.262142Permissions Required, Third Party Advisory, VDB Entry
https://vuldb.com/?id.262142Third Party Advisory, VDB Entry
https://vuldb.com/?submit.319836Third Party Advisory, VDB Entry

Timeline

Published: Apr 27, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-4251?

How severe is CVE-2024-4251?

CVE-2024-4251 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.

How do I fix CVE-2024-4251?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-4251?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST