🛡️ CVE-2026-7470 — 4g300-firmware

🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-119 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-7470 is classified as CWE-119: Improper Restriction of Operations within Memory Buffer Bounds. A read or write is performed without confirming it stays inside the allocated buffer, corrupting adjacent memory.

Affected software

CVE-2026-7470 is recorded against 1 package.

  • 4g300-firmware

Timeline and source

Published on 30 April 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
vuldb.com
vuldb.com
vuldb.com
www.tenda.com.cn

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-119
Public Exploit ✅ No
Source NVD
Published 2026-04-30
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
4g300-firmware — —

References

Third Party Advisory, VDB Entry https://vuldb.com/submit/804269
Third Party Advisory, VDB Entry https://vuldb.com/vuln/360206
Permissions Required, VDB Entry https://vuldb.com/vuln/360206/cti

Similar Threats

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