TI-2026-06566 Aliases CVE-2026-7470 GHSA-jc4x-cmh7-8379

Tenda 4G300 SafeMacFilter sub_427C3C stack-based overflow

MEDIUM 40CWE-119Published 2026-04-30 · Updated 2026-05-04

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A flaw has been found in Tenda 4G300 US_4G300V1.0Mt_V1.01.42_CN_TDC01. Affected is the function sub_427C3C of the file /goform/SafeMacFilter. This manipulation of the argument page causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00516 44th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
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	4G300	US_4G300V1.0Mt_V1.01.42_CN_TDC01	—	No fix listed	CNA

4G300 VendorTenda Affected US_4G300V1.0Mt_V1.01.42_CN_TDC01 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:tenda:4g300_firmware:1.01.42_cn_tdc01:::::::*	1.01.42_cn_tdc01	Vulnerable	Tenda
cpe:2.3:h:tenda:4g300:-:::::::*	not specified by NVD	Running on	Tenda

cpe:2.3:o:tenda:4g300_firmware:1.01.42_cn_tdc01:*:*:*:*:*:*:* Versions 1.01.42_cn_tdc01 Vulnerable ·Tenda
cpe:2.3:h:tenda:4g300:-:*:*:*:*:*:*:* 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-2026-7470
2026-10-03 Alias added: GHSA-jc4x-cmh7-8379
2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 1

https://github.com/Axelioc/CVE/blob/main/Tenda/US_4G300/sub_427C3C/sub_427C3C.md

Other 1

https://www.tenda.com.cn/

TI-2023-20189 Tenda 4G300 v1.01.42 was discovered to contain a stack overflow via the page parameter at /VirtualSer. CVSS 3.1CRITICAL 9.8
TI-2023-19243 Tenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack… CVSS 3.1CRITICAL 9.8
TI-2023-19242 Tenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack… CVSS 3.1CRITICAL 9.8
TI-2023-19241 Tenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack… CVSS 3.1CRITICAL 9.8
TI-2023-19239 Tenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack… CVSS 3.1CRITICAL 9.8
TI-2024-03880 Tenda 4G300 sub_429A30 stack-based overflow CVSS 3.1HIGH 8.8

See all 11 →

Sources

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