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CVE-2025-68271— Unauthenticated Remote Code Execution in openc3-api

Quick assessment

Affected
OpenC3 cosmos
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenC3 COSMOS是OpenC3开源的一个应用程序。 OpenC3 COSMOS 5.0.0版本至6.10.1版本存在安全漏洞，该漏洞源于JSON-RPC API中String#convert_to_value对攻击者控制的参数文本解析不当，可能导致未经身份验证的攻击者触发Ruby代码执行。

CVSS 10.0 · Critical EPSS 0.56% · P44

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-68271

Vulnerability Information
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Vulnerability Title
Unauthenticated Remote Code Execution in openc3-api
Source: CVE Program / CVE List V5
Vulnerability Description
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.0.0 to 6.10.1, OpenC3 COSMOS contains a critical remote code execution vulnerability reachable through the JSON-RPC API. When a JSON-RPC request uses the string form of certain APIs, attacker-controlled parameter text is parsed into values using String#convert_to_value. For array-like inputs, convert_to_value executes eval(). Because the cmd code path parses the command string before calling authorize(), an unauthenticated attacker can trigger Ruby code execution even though the request ultimately fails authorization (401). This vulnerability is fixed in 6.10.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
动态执行代码中指令转义处理不恰当(Eval注入)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenC3 COSMOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenC3 COSMOS是OpenC3开源的一个应用程序。 OpenC3 COSMOS 5.0.0版本至6.10.1版本存在安全漏洞，该漏洞源于JSON-RPC API中String#convert_to_value对攻击者控制的参数文本解析不当，可能导致未经身份验证的攻击者触发Ruby代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenC3 cosmos >= 5.0.0, < 6.10.2 -

II. Public POCs for CVE-2025-68271

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III. Intelligence Information for CVE-2025-68271

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IV. Related Vulnerabilities

Same product: cosmos
Same vendor: OpenC3
Same weakness: CWE-95

V. Comments for CVE-2025-68271

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