What is CVE-2024-4020?

CVE-2024-4020 is a high-severity vulnerability in Tenda Fh1206, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2024-04-20.

How severe is CVE-2024-4020?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Tenda Fh1206

CVE-2024-4020

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.

Vulnerability class: Buffer Overflow

EPSS: 0.016 (72.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tenda Fh1206 — versions 1.2.0.8(8155)
Tenda Fh1206_firmware — versions 1.2.0.8\(8155\)

Weakness classification (CWE)

References

cna@vuldb.com (Permissions Required, technical-description, VDB Entry, vdb-entry)
cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
cna@vuldb.com (Exploit, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2024-4020?: CVE-2024-4020 is a high-severity vulnerability in Tenda Fh1206, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2024-04-20.
How severe is CVE-2024-4020?: High severity. CVSS v3 base score is 8.8 out of 10.