What is CVE-2026-7470?

CVE-2026-7470 is a high-severity vulnerability in Tenda 4g300, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-30.

How severe is CVE-2026-7470?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Tenda 4g300

CVE-2026-7470

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…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (25.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tenda 4g300 — versions US_4G300V1.0Mt_V1.01.42_CN_TDC01
Tenda 4g300_firmware — versions 1.01.42_cn_tdc01

Weakness classification (CWE)

References

VDB-360206 | Tenda 4G300 SafeMacFilter sub_427C3C stack-based overflow (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
VDB-360206 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
Submit #804269 | Tenda 4G300 US_4G300V1.0Mt_V1.01.42_CN_TDC01 Stack-based Buffer Overflow (Third Party Advisory, VDB Entry, third-party-advisory)
cna@vuldb.com (Third Party Advisory, exploit, broken-link, Broken Link)
cna@vuldb.com (Product, product)

Frequently asked questions

What is CVE-2026-7470?: CVE-2026-7470 is a high-severity vulnerability in Tenda 4g300, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-30.
How severe is CVE-2026-7470?: High severity. CVSS v3 base score is 8.8 out of 10.