CVE-2025-25251 is a high-severity vulnerability found in the Fortinet FortiClient, specifically affecting versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, and 7.0.0 through 7.0.14. This vulnerability allows an Incorrect Authorization flaw, identified as CWE-863, which may permit a local attacker to escalate privileges through crafted XPC messages. With a CVSS score of 7.8, this vulnerability poses a significant risk to affected systems.
The exploitability of this vulnerability is rated high, indicating a critical need for organizations to address this issue promptly. Failure to patch may lead to unauthorized access and potential exploitation, making it imperative for security teams to take swift action.
Organizations should assess their exposure to this vulnerability and prioritize remediation efforts. As the vulnerability has been analyzed and is publicly disclosed, immediate attention is warranted to prevent possible exploitation by attackers.
In light of these factors, organizations must prioritize patching to mitigate the risks associated with CVE-2025-25251. Implementing timely updates will enhance security posture and protect sensitive information from potential threats.
Vulnerability Details
The vulnerability is classified as Incorrect Authorization (CWE-863) and affects multiple versions of FortiClient on macOS. Specifically, the vulnerable versions are 7.4.0 to 7.4.2, 7.2.0 to 7.2.8, and 7.0.0 to 7.0.14. The CVSS score assigned to this vulnerability is 7.8, which indicates a high severity level due to its potential impact on confidentiality, integrity, and availability.
The vulnerability was published on May 28, 2025, and it has been classified under the CVSS 3.1 vector with the following attributes: AV:L (Attack Vector: Local), AC:L (Attack Complexity: Low), PR:L (Privileges Required: Low), UI:N (User Interaction: None), and impacts confidentiality, integrity, and availability at high levels.
Technical Analysis
The root cause of this vulnerability lies in the incorrect handling of XPC messages, which can be exploited by an attacker with local access to escalate privileges. The attack vector is local, meaning that an attacker must have physical or remote access to the system. The attack complexity is low, as it does not require advanced skills or knowledge to exploit the vulnerability.
Low privileges are required to execute the attack, and no user interaction is necessary. The vulnerability affects the confidentiality, integrity, and availability of the system, making it a critical concern for organizations utilizing FortiClient.
Risk & Impact Analysis
Risk to organizations includes unauthorized privilege escalation, leading to potential access to sensitive data and critical systems. The blast radius of this vulnerability can be extensive, especially in environments where FortiClient is widely deployed. Organizations must assess their risk exposure and prioritize remediation based on the CVSS score and the potential impact of exploitation.
Given that this vulnerability has a high exploitability rating, organizations should prioritize patching immediately. Delaying remediation increases the likelihood of successful exploitation by attackers.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
This vulnerability affects FortiClient versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, and 7.0.0 through 7.0.14. Organizations should ensure they update to the latest patched version to mitigate this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching to remediate the vulnerability identified in CVE-2025-25251. The latest patched versions should be deployed immediately to prevent unauthorized privilege escalation. If an immediate patch is not available, organizations should consider implementing configuration hardening measures and monitoring for unusual activity.
For further assistance, organizations can utilize services like penetration testing to assess the security posture and identify any additional vulnerabilities.
Detection Guidance
Organizations should monitor logs for indicators of unauthorized access attempts and analyze behavioral anomalies related to privilege escalation. Network signatures should be established to detect any unusual traffic patterns that may indicate exploitation of this vulnerability.
AppSecure Threat Intelligence Insight
CVE-2025-25251 represents a growing trend of vulnerabilities that allow local privilege escalation, highlighting the need for robust security practices in local application management. This incident underscores the importance of maintaining up-to-date software and vigilant monitoring of local environments.
To enhance security measures, organizations can refer to best practices in penetration testing methodology and implement effective vulnerability management programs to safeguard against similar vulnerabilities in the future.
By understanding the implications of CVE-2025-25251, organizations can better prepare and defend against potential threats while improving their overall security framework.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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