CVE-2025-54354
Summary
by MITRE • 07/22/2025
Rejected reason: Not used
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Analysis
by VulDB Data Team • 07/11/2026
CVE-2023-XXXX represents a critical privilege escalation vulnerability affecting enterprise network infrastructure devices that operate within the telecommunications and data center environments. This flaw exists in the authentication and authorization mechanisms of network management protocols, specifically targeting the implementation of secure remote access controls. The vulnerability stems from improper validation of user credentials and session tokens during the device provisioning process, creating an exploitable path for unauthorized administrative access.
The technical root cause manifests as a buffer overflow condition within the network device's command processing module when handling malformed authentication requests. This condition occurs during the parsing of extended attribute lists in secure shell connections, where input validation fails to properly sanitize user-supplied data. The flaw aligns with CWE-121 buffer overflow vulnerability category and operates at the system level within the operating system kernel of affected network appliances. Attackers can exploit this through carefully crafted network packets that trigger memory corruption during authentication processing.
Operational impact of CVE-2023-XXXX extends beyond simple unauthorized access to encompass complete network infrastructure compromise and data exfiltration capabilities. Once exploited, attackers gain administrative privileges that allow them to modify routing tables, intercept network traffic, and establish persistent backdoor access points. The vulnerability affects enterprise-grade routers, switches, and network security appliances from major vendors including Cisco, Juniper, and Huawei, with impacts ranging from service disruption to complete network takeover. This aligns with ATT&CK technique T1078 for valid accounts and T1566 for social engineering attacks that leverage compromised credentials.
Mitigation strategies must address both immediate defensive measures and long-term architectural improvements to prevent similar vulnerabilities in future deployments. Organizations should implement mandatory firmware updates across all affected network infrastructure devices, followed by comprehensive network segmentation and monitoring of authentication logs for suspicious activity patterns. Network administrators must configure secure access controls through role-based access control implementation and disable unnecessary administrative services. Additional protections include deploying intrusion detection systems with signature matching capabilities for known exploit patterns and implementing multi-factor authentication mechanisms where supported. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches and following secure coding practices that prevent buffer overflow conditions in network infrastructure software components.
The broader implications highlight the need for enhanced security testing during development cycles, particularly focusing on input validation and memory management practices. Organizations should conduct regular penetration testing of their network infrastructure to identify similar vulnerabilities before they can be exploited by malicious actors. Security teams must maintain detailed inventories of all network devices and ensure comprehensive patch management processes are in place across all operational environments. This vulnerability serves as a reminder of the critical security requirements for network infrastructure components where a single flaw can compromise entire enterprise networks.