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Tenda CVE-2026-4904

| EUVD-2026-16474 HIGH
Stack-based Buffer Overflow (CWE-121)
2026-03-26 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

4
PoC Detected
Mar 31, 2026 - 20:59 vuln.today
Public exploit code
EUVD ID Assigned
Mar 26, 2026 - 23:31 euvd
EUVD-2026-16474
Analysis Generated
Mar 26, 2026 - 23:31 vuln.today
CVE Published
Mar 26, 2026 - 23:11 nvd
HIGH 7.4

DescriptionNVD

A vulnerability has been found in Tenda AC5 15.03.06.47. This issue affects the function formSetCfm of the file /goform/setcfm of the component POST Request Handler. Such manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

Stack-based buffer overflow in Tenda AC5 router firmware version 15.03.06.47 enables remote authenticated attackers to achieve arbitrary code execution with high impact to confidentiality, integrity, and availability. The vulnerability resides in the formSetCfm function's handling of the funcpara1 parameter in POST requests to /goform/setcfm. …

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RemediationAI

Within 24 hours: Identify all Tenda AC5 routers on the network and document firmware versions via device inventory or management console. Within 7 days: Implement network segmentation to restrict direct access to router management interfaces (restrict /goform/setcfm to administrative network only) and enforce strong authentication on all device admin accounts. …

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CVE-2026-4904 vulnerability details – vuln.today

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