CVE-2026-20002 in Secure Firewall Management Center
Summary
by MITRE • 03/04/2026
A vulnerability in the web-based management interface of Cisco Secure FMC Software could allow an authenticated, remote attacker to conduct SQL injection attacks on an affected system. This vulnerability is due to inadequate validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted requests to an affected device. A successful exploit could allow the attacker to obtain full access to the database and read certain files on the underlying operating system. To exploit this vulnerability, the attacker would need valid user credentials.
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Analysis
by VulDB Data Team • 03/05/2026
This vulnerability resides within the web-based management interface of Cisco Secure FMC Software, representing a critical security flaw that enables authenticated remote attackers to execute SQL injection attacks against affected systems. The vulnerability stems from insufficient input validation mechanisms that fail to properly sanitize user-supplied data before processing. The flaw specifically manifests when the system processes requests containing maliciously crafted SQL commands through the web interface, allowing an attacker to manipulate database queries and potentially gain unauthorized access to sensitive information. This type of vulnerability falls under the CWE-89 category, which specifically addresses SQL injection flaws in software applications. The attack vector requires an authenticated session, meaning that an attacker must first obtain valid user credentials to exploit the vulnerability, but once authenticated, the attacker can leverage this weakness to escalate their privileges and access the underlying database system. The implications of such a vulnerability are severe as it allows for complete database compromise and potential file system access on the operating system where the software is installed.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation could enable attackers to extract sensitive configuration data, user credentials, and other confidential information stored within the database. The attacker could potentially read system files, modify database contents, and even execute arbitrary commands on the underlying operating system. This represents a significant threat to network security infrastructure, as the Cisco Secure FMC Software serves as a critical component for security policy management and threat detection. The vulnerability's exploitation capability aligns with ATT&CK technique T1071.004, which covers application layer protocol traffic shaping, and T1046, which involves network service scanning. Organizations utilizing this software face substantial risk of data breaches, service disruption, and potential lateral movement within their network infrastructure. The vulnerability's presence in a management interface makes it particularly dangerous as it provides attackers with access to administrative functions and security policies that control network access and threat response mechanisms.
Mitigation strategies for this vulnerability should include immediate implementation of the vendor-provided security patches and updates to address the SQL injection flaw. Network administrators should enforce strict access controls and implement multi-factor authentication to reduce the risk of unauthorized access to the management interface. The principle of least privilege should be applied to limit user permissions and prevent unauthorized database access even if an attacker manages to exploit the vulnerability. Regular security assessments and penetration testing should be conducted to identify potential entry points and validate the effectiveness of implemented controls. Organizations should also consider implementing database activity monitoring and intrusion detection systems to detect suspicious SQL queries and unauthorized access attempts. The vulnerability's classification as a remote code execution risk means that organizations should also review their network segmentation strategies to limit lateral movement and reduce the attack surface. Additionally, regular security awareness training for administrators can help prevent credential compromise through social engineering attacks, which would be necessary to exploit this vulnerability. Organizations should also maintain detailed audit logs of all database access and management activities to facilitate forensic analysis in case of successful exploitation attempts.