Shibby Tomato Web UI rc start_6rd_tunnel os command injection
CVE-2026-10871

8.6HIGH

Key Information:

Vendor

Shibby

Status
Tomato
Vendor
CVE Published:
4 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-10871?

A vulnerability has been found in Shibby Tomato 1.28.0000. This vulnerability affects the function start_6rd_tunnel of the file /sbin/rc of the component Web UI. Such manipulation of the argument ipv6_6rd_borderrelay leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This project is superseded by FreshTomato.

Affected Version(s)

Tomato 1.28.0000

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-2026-10871 - Proof of Concept

References

https://vuldb.com/vuln/368361
vdb-entrytechnical-description
https://vuldb.com/vuln/368361/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-10871
third-party-advisory

CVSS V4

Score:
8.6
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

WH-YHUST (VulDB User)
VulDB CNA Team
.