Buffer Overflow Vulnerability in Tenda F456 Router
CVE-2026-7082

8.7HIGH

Key Information:

Vendor

Tenda

Status
Vendor
CVE Published:
27 April 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-7082?

A buffer overflow vulnerability exists in the Tenda F456 router, specifically within the 'formWrlExtraSet' function of the httpd component. By manipulating the argument 'Go', an attacker can exploit this flaw to execute arbitrary code remotely, potentially compromising the device's security. The exploit has been made public, emphasizing the need for immediate attention and patching from users to safeguard their devices.

Affected Version(s)

F456 1.0.0.5

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.

References

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

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LtzHust (VulDB User)
.