CVE-2026-63453 in AOS-CX
Summary
by MITRE • 07/21/2026
Buffer overflow vulnerabilities exist in the command line interface of AOS-CX. Successful exploitation of these vulnerabilities could allow a remote high-privileged user to execute arbitrary code as a privileged user on the underlying operating system.
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Analysis
by VulDB Data Team • 07/21/2026
A buffer overflow vulnerability within the command line interface of AOS-CX represents a critical security weakness that can be exploited by remote attackers with high-privileged credentials to gain unauthorized execution privileges on the underlying operating system. This class of vulnerability falls under CWE-121, which specifically addresses buffer overflow conditions where insufficient bounds checking allows an attacker to overwrite adjacent memory locations and potentially execute malicious code. The attack vector requires a remote high-privileged user who already possesses elevated access rights within the system, making this vulnerability particularly dangerous as it can be leveraged for privilege escalation attacks that align with ATT&CK technique T1068. The operational impact of such an exploit extends beyond simple unauthorized access, as successful exploitation could enable attackers to execute arbitrary code with system-level privileges, potentially leading to complete system compromise and data exfiltration.
The technical flaw manifests through inadequate input validation mechanisms within the command line interface component of AOS-CX software architecture. When processing user-supplied commands or parameters, the system fails to properly validate the length and content of input data against predefined buffer boundaries. This allows an attacker with high-privileged access to craft malicious input sequences that exceed allocated memory space, causing stack corruption or memory overwrite conditions. The vulnerability is particularly concerning because it operates within a component that handles administrative functions, meaning that even if an attacker cannot directly access the system, they can leverage existing privileged sessions to escalate their privileges further through code execution capabilities. The implementation of proper bounds checking and input sanitization mechanisms would prevent such memory corruption scenarios from occurring.
The operational implications of this vulnerability extend beyond immediate exploitation to broader security posture concerns within network infrastructure environments that utilize AOS-CX platforms. Organizations relying on affected systems face potential risks including unauthorized access to sensitive network configurations, data breaches through privilege escalation, and possible lateral movement within their network infrastructure. The vulnerability's remote nature means that attackers could potentially exploit it from outside the network perimeter if they have already obtained high-privileged credentials through other means such as credential theft or social engineering attacks. This aligns with ATT&CK tactics covering privilege escalation and defense evasion techniques, where compromised systems can be used to establish persistent access points within the network environment.
Effective mitigation strategies for this vulnerability should focus on immediate software patching and updates from the vendor to address the underlying buffer overflow conditions in the command line interface implementation. Network administrators should implement strict access controls and monitoring of administrative sessions to detect anomalous command execution patterns that might indicate exploitation attempts. Additionally, regular security assessments should be conducted to identify similar vulnerabilities within other network management interfaces and ensure proper input validation mechanisms are implemented across all system components. The remediation process must include comprehensive testing of patched systems to verify that the buffer overflow conditions have been properly addressed while maintaining operational continuity. Organizations should also consider implementing network segmentation and privilege least-privilege principles to minimize potential damage from successful exploitation attempts, ensuring that even if an attacker gains access through this vulnerability, their ability to escalate privileges or move laterally within the network remains limited.