Stack-Based Buffer Overflow Vulnerability in Tenda F453 Router
CVE-2026-3727

8.7HIGH

Key Information:

Vendor

Tenda
Status
F453
Vendor
CVE Published:
8 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3727?

A stack-based buffer overflow vulnerability has been identified in the Tenda F453 router, specifically impacting the function sub_3C6C0 in the /goform/QuickIndex file. The vulnerability arises from improper handling of the mit_linktype and PPPOEPassword arguments, which can lead to a stack overflow condition. This can be exploited remotely by an attacker, potentially allowing them to execute arbitrary code or cause a denial of service. With the exploit already made public, it’s crucial for users of Tenda F453 version 1.0.0.3 to apply security measures immediately to protect against possible attacks.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

F453 1.0.0.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-3727 - Proof of Concept

References

https://vuldb.com/?id.349705
vdb-entrytechnical-description
https://vuldb.com/?ctiid.349705
signaturepermissions-required
https://vuldb.com/?submit.766932
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LtzHust (VulDB User)
JSON
.