OS Command Injection Vulnerability in Shibby Tomato Router Firmware
CVE-2026-15546

5.3MEDIUM

Key Information:

Vendor

Shibby

Status
Tomato
Vendor
CVE Published:
13 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15546?

A security vulnerability has been identified in Shibby Tomato firmware versions up to 1.28.0000, affecting the function responsible for handling the execution of JFFS2 commands. This flaw allows an attacker to manipulate the argument within the jffs2_exec function, leading to potential remote OS command injection. The implications of this vulnerability pose significant risks, as malicious actors can exploit it to execute arbitrary commands on the affected devices. Given that exploits have been publicly released, users are strongly advised to apply relevant updates or consider migration to the FreshTomato project to enhance their security posture.

Affected Version(s)

Tomato 1.0

Tomato 1.1

Tomato 1.2

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-2026-15546 - Proof of Concept

References

https://vuldb.com/vuln/377896
vdb-entrytechnical-description
https://vuldb.com/vuln/377896/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15546
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

VulDB Gitee Analyzer
VulDB CNA Team
.