CVE-2025-21187 describes a high-severity vulnerability in Microsoft Power Automate that permits remote code execution. With a CVSS score of 7.8, this vulnerability poses significant risks to organizations leveraging this tool. The potential for exploitation emphasizes the urgency of immediate remediation measures.
This vulnerability allows attackers to execute arbitrary code on the affected system. The attack vector is local, which means that user interaction is required to exploit the vulnerability effectively. However, the implications of a successful exploit can lead to severe confidentiality, integrity, and availability impacts.
Organizations using Microsoft Power Automate should prioritize patching this vulnerability immediately to prevent unauthorized access and potential system compromise. The risk to organizations includes unauthorized execution of commands, data breaches, and potential system failures.
As of now, no public exploits or proof of concepts have been confirmed for this vulnerability, but the potential for exploitation remains a critical concern. Organizations must remain vigilant and proactive in their security measures.
Vulnerability Details
The Microsoft Power Automate Remote Code Execution Vulnerability allows remote code execution due to inadequate user input validation. Specifically classified as CWE-94, this vulnerability can lead to severe impacts on confidentiality, integrity, and availability.
The CVSS score of 7.8 signifies a high-severity vulnerability, indicating that organizations must address it promptly. Affected products include Microsoft Power Automate for Desktop versions between 2.46 and 2.51, with specific ranges outlined in the vulnerability configuration.
Published on January 14, 2025, the vulnerability has been analyzed thoroughly. Organizations should consult the official advisory for detailed patching instructions.
Technical Analysis
The root cause of this vulnerability stems from insufficient handling of user input, which allows attackers to inject malicious code. The attack complexity is low, and no privileges are required to exploit it, but user interaction is necessary.
The vulnerability impacts confidentiality, integrity, and availability, with high potential for exploitation due to its local attack vector. Organizations must implement strict access controls and ensure user awareness to mitigate risks effectively.
Risk & Impact Analysis
Risk to organizations includes unauthorized execution of commands, leading to potential data breaches and system failures. The blast radius could extend to all users of the affected versions of Microsoft Power Automate for Desktop.
Given the CVSS score and the severity of potential impacts, organizations should prioritize this vulnerability in their patching cycles. The urgency for patching is high, especially considering the lack of public exploits, which suggests that attackers may be actively seeking to exploit this vulnerability.
Organizations should implement additional security controls and monitoring to detect any unusual activity related to this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects Microsoft Power Automate for Desktop versions from 2.46 to 2.51, specifically excluding the versions 2.46.184.25013, 2.47.126.25010, 2.48.164.25010, 2.49.182.25010, 2.50.139.25010, and 2.51.349.24355.
Mitigation & Remediation
Organizations should implement the following measures to mitigate risks associated with this vulnerability:
1. Apply the latest security patches provided by Microsoft to address this vulnerability.
2. Implement strict access controls to limit user interaction that may lead to exploitation.
3. Conduct regular security assessments and monitoring to detect any indications of exploitation.
For further details on patching and remediation, organizations can refer to Microsoft’s official guidance on the vulnerability.
Detection Guidance
Security teams should monitor the following indicators to detect potential exploitation of this vulnerability:
1. Unusual application behavior or unexpected code execution patterns in Microsoft Power Automate.
2. Logs indicating unauthorized access attempts or user interaction not aligned with normal operational practices.
3. Network traffic anomalies that suggest unauthorized code execution or data exfiltration.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-21187 reflects ongoing trends in remote code execution vulnerabilities. Security teams should learn from this vulnerability to enhance their input validation mechanisms.
To stay ahead of potential threats, organizations should adopt a proactive approach in evaluating their security posture, particularly in relation to user input handling in applications like Microsoft Power Automate.
For additional insights, organizations can explore our penetration testing methodology and consider implementing a comprehensive vulnerability management program to address similar threats.
Organizations should also take steps to enhance their API security testing practices to prevent similar exploitation in the future.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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