Shenzhen Cudy TR3000 up to 2.5.41 AutoReboot /etc/init.d/autoreboot reboot_time command injection

Summaryinfo

A vulnerability, which was classified as very critical, was found in Shenzhen Cudy TR3000 up to 2.5.41. This impacts an unknown function of the file /etc/init.d/autoreboot of the component AutoReboot. Such manipulation of the argument reboot_time leads to command injection. This vulnerability is listed as CVE-2026-129103. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Shenzhen Cudy TR3000 up to 2.5.41. It has been rated as very critical. Affected by this issue is some unknown functionality of the file /etc/init.d/autoreboot of the component AutoReboot. The manipulation of the argument reboot_time with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Cudy TR3000 before 2.5.42 contains a command injection vulnerability that allows authenticated administrators to execute commands as root by injecting newlines into reboot_time. Attackers can submit a reboot_time value followed by a newline and crontab line, which /etc/init.d/autoreboot writes to the root crontab for crond to run.

The advisory is available at cudy.com. This vulnerability is handled as CVE-2026-129103 since 11/13/2026. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are necessary for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/13/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 2.5.42 eliminates this vulnerability.

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Productinfo

Vendor

• Shenzhen Cudy

Name

• TR3000

Version

• 2.5.0
• 2.5.1
• 2.5.2
• 2.5.3
• 2.5.4
• 2.5.5
• 2.5.6
• 2.5.7
• 2.5.8
• 2.5.9
• 2.5.10
• 2.5.11
• 2.5.12
• 2.5.13
• 2.5.14
• 2.5.15
• 2.5.16
• 2.5.17
• 2.5.18
• 2.5.19
• 2.5.20
• 2.5.21
• 2.5.22
• 2.5.23
• 2.5.24
• 2.5.25
• 2.5.26
• 2.5.27
• 2.5.28
• 2.5.29
• 2.5.30
• 2.5.31
• 2.5.32
• 2.5.33
• 2.5.34
• 2.5.35
• 2.5.36
• 2.5.37
• 2.5.38
• 2.5.39
• 2.5.40
• 2.5.41

CPE 2.3info

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CPE 2.2info

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