CVE-2024-4020

Name: CVE-2024-4020
Creator: NVD / NIST
Published: 2024-04-20T23:15:48.183+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.57%

Last modified Jun 17, 2026

CVE-2024-4020 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability was found in Tenda FH1206 1.2.0.8(8155) and classified as critical. This issue affects the function fromAddressNat of the file /goform/addressNat. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

Description

A vulnerability was found in Tenda FH1206 1.2.0.8(8155) and classified as critical. This issue affects the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument entrys leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-261671. 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

1.57%

72.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tenda	Fh1206 Firmware	1.2.0.8\(8155\)

References

https://palm-vertebra-fe9.notion.site/fromAddressNat_entrys-b04d5356e5f04e30b37cb9037b94e1b2Exploit, Third Party Advisory
https://vuldb.com/?ctiid.261671Permissions Required, VDB Entry
https://vuldb.com/?id.261671Permissions Required, VDB Entry
https://vuldb.com/?submit.316036Third Party Advisory, VDB Entry
https://palm-vertebra-fe9.notion.site/fromAddressNat_entrys-b04d5356e5f04e30b37cb9037b94e1b2Exploit, Third Party Advisory
https://vuldb.com/?ctiid.261671Permissions Required, VDB Entry
https://vuldb.com/?id.261671Permissions Required, VDB Entry
https://vuldb.com/?submit.316036Third Party Advisory, VDB Entry

Timeline

Published: Apr 20, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-4020?

How severe is CVE-2024-4020?

CVE-2024-4020 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2024-4020?

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-2024-4020?

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

Scan your code now

Source: NVD / NIST