TI-2024-03749 Aliases CVE-2024-4020 GHSA-rw9j-38rq-r4wq

Tenda FH1206 addressNat fromAddressNat buffer overflow

HIGH 79CWE-120Published 2024-04-20 · Updated 2024-08-01

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01575 75th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Tenda	FH1206	1.2.0.8(8155)	—	No fix listed	CNA

FH1206 VendorTenda Affected 1.2.0.8(8155) Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:tenda:fh1206_firmware:1.2.0.8\(8155\):::::::*	1.2.0.8(8155)	Vulnerable	Tenda
cpe:2.3:h:tenda:fh1206:-:::::::*	not specified by NVD	Running on	Tenda

cpe:2.3:o:tenda:fh1206_firmware:1.2.0.8\(8155\):*:*:*:*:*:*:* Versions 1.2.0.8(8155) Vulnerable ·Tenda
cpe:2.3:h:tenda:fh1206:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-4020
2026-10-03 Alias added: GHSA-rw9j-38rq-r4wq

References

Exploit 1

https://palm-vertebra-fe9.notion.site/fromAddressNat_entrys-b04d5356e5f04e30b37cb9037b94e1b2

TI-2024-28703 An issue in the handler function in /goform/telnet of Tenda FH1206 v02.03.01.35 allows… CVSS 3.1CRITICAL 9.8
TI-2024-23378 Tenda FH1206 V1.2.0.8(8155) was discovered to contain a command injection vulnerability… CVSS 3.1CRITICAL 9.8
TI-2024-23150 Tenda FH1206 V1.2.0.8(8155)_EN was discovered to contain a stack-based buffer overflow… CVSS 3.1CRITICAL 9.8
TI-2024-23148 Tenda FH1206 V1.2.0.8(8155)_EN was discovered to contain a stack-based buffer overflow… CVSS 3.1CRITICAL 9.8
TI-2024-23379 Tenda FH1206 V1.2.0.8(8155) was discovered to contain a command injection vulnerability… CVSS 3.1HIGH 8.6
TI-2024-21970 Tenda FH1206 V1.2.0.8(8155)_EN was discovered to contain a stack-based buffer overflow… CVSS 3.1HIGH 7.5

See all 38 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences