CVE-2026-21229 is a high-severity vulnerability affecting Microsoft Power BI Report Server. This vulnerability allows authorized attackers to execute code over a network due to improper input validation. The CVSS score for this vulnerability is 8.0, indicating a high severity level that organizations should not overlook. The risk to organizations includes potential unauthorized access and manipulation of sensitive data, making it crucial for defenders to act promptly.
As of now, there are no known exploits publicly available for this vulnerability, but the nature of the flaw means that the potential for exploitation exists. Organizations should prioritize patching immediately to mitigate the risks involved.
Given the high severity of this vulnerability and its ability to affect confidentiality, integrity, and availability, organizations should ensure that their systems are updated with the latest security patches. Failure to address this vulnerability could lead to significant security incidents.
In summary, CVE-2026-21229 presents a serious risk that requires immediate attention. Organizations must stay informed and take necessary actions to protect their critical assets.
Vulnerability Details
The vulnerability, described as improper input validation, specifically affects Microsoft Power BI Report Server. According to the CVSS v3.1 metrics, it has a base score of 8.8, indicating a high severity level. The attack vector is network-based, and it requires low privileges and user interaction to exploit. The vulnerability impacts confidentiality, integrity, and availability, making it critical to address.
Technical Analysis
The root cause of CVE-2026-21229 is improper input validation within the Power BI Report Server, which can be exploited over a network. Attackers with low privileges can execute arbitrary code, requiring user interaction in certain cases. The attack complexity is low, which enhances the risk profile of this vulnerability.
In terms of impacts, this vulnerability has high confidentiality, integrity, and availability impacts, meaning that successful exploitation could lead to significant data breaches and service disruptions. Organizations using the affected product are advised to assess their security posture and implement necessary defenses.
Risk & Impact Analysis
The real-world risk associated with CVE-2026-21229 is significant. Organizations utilizing the Power BI Report Server may face unauthorized access and potential data loss if this vulnerability is not remediated. The blast radius could be extensive, especially for organizations that handle sensitive information.
Given its high CVSS score and the fact that it is not included in the KEV catalog, the urgency for remediation is high. Organizations should schedule remediation as a priority to mitigate potential risks.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects Microsoft Power BI Report Server versions prior to 15.0.1120.113. Organizations should ensure they are running the latest version to mitigate risks.
Mitigation & Remediation
To remediate CVE-2026-21229, organizations should apply the latest updates from Microsoft. If patches are not immediately available, consider implementing configuration hardening and network controls to limit exposure. Regular monitoring of systems for suspicious activities is also recommended.penetration testing can help identify further vulnerabilities.
Detection Guidance
Organizations should monitor logs for indicators of exploitation attempts, including unusual access patterns to the Power BI Report Server. Behavioral anomalies, such as unexpected code execution, should also be investigated.
AppSecure Threat Intelligence Insight
CVE-2026-21229 exemplifies the ongoing challenges in application security. As organizations increasingly rely on data analytics platforms like Power BI, the risk of exploitation through input validation weaknesses remains a significant concern.
Finally, organizations should consider engaging in regular vulnerability management programs to strengthen their defenses against similar vulnerabilities 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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