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Vulnerability record · CVE-2026-7470 · published 30 April 2026

CVE-2026-7470: Tenda 4g300 firmware memory buffer overflow vulnerability

Tenda · 4g300 Firmware

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.

7.4 CVSS 4.0 High EPSS 0.96% · top 40.2% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
0.96%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

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.

CVSS: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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Axelioc/CVE/blob/main/Tenda/US_4G300/sub_427C3C/sub_427C3C.md Broken LinkThird Party Advisory
https://vuldb.com/submit/804269 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/360206 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/360206/cti Permissions RequiredVDB Entry
https://www.tenda.com.cn/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-38929Tenda 4g300 firmware out-of-bounds write vulnerabilityTenda 4G300 v1.01.42 was discovered to contain a stack overflow via the page parameter at /VirtualSer.EPSS 0.84%9.8CVE-2023-37718Tenda f1202 firmware out-of-bounds write vulnerabilityTenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack overflow in the page parameter in the function fromSafeClie…EPSS 0.93%9.8CVE-2023-37721Tenda f1202 firmware out-of-bounds write vulnerabilityTenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack overflow in the page parameter in the function fromSafeMacF…EPSS 0.93%9.8CVE-2023-37722Tenda f1202 firmware out-of-bounds write vulnerabilityTenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack overflow in the page parameter in the function fromSafeUrlF…EPSS 0.93%9.8CVE-2023-37723Tenda f1202 firmware out-of-bounds write vulnerabilityTenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack overflow in the page parameter in the function fromqossetti…EPSS 0.93%8.8CVE-2024-4169Tenda 4g300 firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda 4G300 1.01.42. It has been declared as critical. This vulnerability affects the function sub_42775C/sub_4279CC. Th…EPSS 1.8%8.8CVE-2024-4170Tenda 4g300 firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda 4G300 1.01.42. It has been rated as critical. This issue affects the function sub_429A30. The manipulation of the …EPSS 1.7%8.8CVE-2024-4168Tenda 4g300 firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda 4G300 1.01.42. It has been classified as critical. This affects the function sub_4260F0. The manipulation of the a…EPSS 1.8%

Source: NIST National Vulnerability Database (record CVE-2026-7470), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.