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Tenda F456 EUVD-2026-25762

| CVE-2026-7079 HIGH
Classic Buffer Overflow (CWE-120)
2026-04-27 VulDB
7.4
CVSS 4.0
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CVSS VectorNVD

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:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

7
PoC Detected
Apr 30, 2026 - 14:37 vuln.today
Public exploit code
Re-analysis Queued
Apr 27, 2026 - 19:07 vuln.today
cvss_changed
Analysis Generated
Apr 27, 2026 - 03:31 vuln.today
CVSS changed
Apr 27, 2026 - 03:22 NVD
8.8 (HIGH) 7.4 (HIGH)
EUVD ID Assigned
Apr 27, 2026 - 03:00 euvd
EUVD-2026-25762
Analysis Generated
Apr 27, 2026 - 03:00 vuln.today
CVE Published
Apr 27, 2026 - 02:30 nvd
HIGH 7.4

DescriptionNVD

A weakness has been identified in Tenda F456 1.0.0.5. This affects the function fromAdvSetWan of the file /goform/AdvSetWan of the component httpd. This manipulation of the argument wanmode causes buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

AnalysisAI

Remote code execution in Tenda F456 router firmware 1.0.0.5 allows authenticated attackers to compromise device integrity and confidentiality via buffer overflow in the WAN configuration interface. The vulnerability exploits the fromAdvSetWan function's improper handling of the wanmode parameter, enabling complete device takeover. …

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RemediationAI

Within 24 hours: Inventory all Tenda F456 routers in production and document firmware versions; restrict administrative access to these devices via network segmentation and disable remote management interfaces. Within 7 days: Contact Tenda support for patch availability and timeline; implement compensating controls by enforcing strong authentication and monitoring administrative access logs for suspicious activity. …

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EUVD-2026-25762 vulnerability details – vuln.today

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