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CVSS 8.8 · HIGH

CVE-2026-7029

A weakness has been identified in Tenda F456 1.0.0.5. The impacted element is the function fromaddressNat of the file /goform/addressNat. Executing a manipulation of the argument menufacturer/Go can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

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Analysis

This vulnerability is limited to the firmware of a specific, low-end consumer router (Tenda F456). It does not affect the software development stack, server infrastructure, or common developer tools used by the MexicoDev community.

Severity

Score: 8.8(HIGH)
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV: NETWORK
AC: LOW
PR: LOW
UI: NONE
S: UNCHANGED
C: HIGH
I: HIGH
A: HIGH
Weakness (CWE): CWE-119CWE-120

EPSS

Probability of exploitation (next 30 days): 0.0008 (0.1%)
Percentile: 23.2%
EPSS: 2026-05-06

Affects

tenda:f456_firmwaretenda:f456

Technical description

A weakness has been identified in Tenda F456 1.0.0.5. The impacted element is the function fromaddressNat of the file /goform/addressNat. Executing a manipulation of the argument menufacturer/Go can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

Published: 4/26/2026, 9:16:19 AM
Last modified: 4/30/2026, 2:03:15 PM

References

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