CVE-2026-3729

Plain English Summary

AI-powered analysis for quick understanding

An attacker can remotely take control of the Tenda F453 router by exploiting a flaw in its firmware that allows them to overflow a memory area, potentially leading to unauthorized access or execution of malicious code. This vulnerability can be triggered by manipulating specific input fields, making it easy for attackers to exploit if they know how to send the right data.

Technical Description

A vulnerability was identified in Tenda F453 1.0.0.3/3.As. Impacted is the function fromPptpUserAdd of the file /goform/PPTPDClient. Such manipulation of the argument username/opttype leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used.

CVSS Vector Analysis

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
Confidentiality ImpactHigh
Integrity ImpactHigh
Availability ImpactHigh
ScopeChanged

Vector String

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

Exploit Resources

Search for proof-of-concept code and exploit modules

Official References

Est. Bounty
$1,842($1K-$5K)
Vendor Response
Grade APatched in 1 day

Quick Information

Published

Mar 8, 2026

about 1 month ago

Last Modified

Mar 9, 2026

29 days ago

Vendor

tenda

Product

f453 firmware

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CVE-2026-3810High

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CVE-2026-3807High

An attacker can remotely exploit a vulnerability in the Tenda FH1202 router to execute arbitrary code by sending specially crafted data that causes a buffer overflow, potentially taking control of the device. This attack can happen without needing physical access, making it a serious risk for users of this router firmware version.