CVE-2026-7470

Tenda 4G300 SafeMacFilter sub_427C3C stack-based overflow

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.

Affected

Tenda · 4G300

CVSS v4.0 VULDB

7.4 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULDB

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

CVSS v2.0 VULDB

9.0 HIGHAV:N/AC:L/Au:S/C:C/I:C/A:C

EPSS

0.95% chance of exploitation in the next 30 days, 61st percentile

Published

2026-04-30

Updated

2026-05-04

Proof-of-concept exploits (1)

• Axelioc/CVE/blob/main/Tenda/US_4G300/sub_427C3C/sub_427C3C.md0★ · 2026-06-01

Security advisories

• https://vuldb.com/submit/804269
• https://vuldb.com/vuln/360206
• https://www.tenda.com.cn

References

• CVE Record
• NVD entry

Related

• CVE-2025-9934
• CVE-2026-7469