CVE-2026-0383 is an OS command injection vulnerability classified under CWE-78 found in Brocade Fabric OS, a specialized operating system used primarily in storage area networks (SANs). The vulnerability arises from improper neutralization of special elements in OS commands executed within the Bash shell environment. An authenticated attacker with local access and privileges to the Bash shell can exploit this flaw to access insecurely stored file contents, including the command history, which may contain sensitive operational commands or credentials. The affected versions include all Fabric OS releases prior to 9.2.1c2, versions 9.2.2 through 9.2.2a, and 10.0.0. The CVSS 4.0 vector indicates that the attack requires local access (AV:L), low attack complexity (AC:L), no authentication beyond local privileges (AT:N), no user interaction (UI:N), and results in high confidentiality impact (VC:H) without affecting integrity or availability. Although no public exploits have been reported, the vulnerability poses a significant risk due to the sensitive nature of the data accessible via the compromised shell environment. The flaw could allow attackers to gather intelligence or prepare for further attacks within the network. Brocade Fabric OS is widely used in enterprise storage networks, making this vulnerability particularly relevant to organizations relying on Brocade SAN infrastructure.

For European organizations, the impact of CVE-2026-0383 can be substantial, especially those operating large-scale data centers, cloud providers, and enterprises with critical storage infrastructure. Exposure of command history and other insecurely stored files can lead to leakage of sensitive operational commands, credentials, or configuration details, undermining confidentiality. This information could facilitate lateral movement, privilege escalation, or targeted attacks within the network. Although the vulnerability does not directly affect system integrity or availability, the breach of confidentiality can have cascading effects on overall security posture. Organizations in sectors such as finance, healthcare, telecommunications, and government are particularly vulnerable due to the sensitivity of their stored data and regulatory compliance requirements under GDPR. The requirement for local authenticated access limits the attack surface but insider threats or compromised accounts could exploit this vulnerability. The absence of known exploits reduces immediate risk but does not eliminate the potential for future attacks.

1. Apply official patches or updates from Brocade as soon as they become available to remediate the vulnerability in Fabric OS. 2. Restrict and tightly control local shell access to trusted administrators only, employing strict access controls and multi-factor authentication where possible. 3. Regularly audit user accounts and privileges on Fabric OS devices to ensure no unauthorized or excessive permissions exist. 4. Implement monitoring and alerting for unusual shell activity or access patterns indicative of exploitation attempts. 5. Secure sensitive files such as command history by configuring appropriate file permissions and considering disabling history logging if feasible. 6. Employ network segmentation to isolate storage infrastructure from general user networks, reducing the risk of local access by unauthorized users. 7. Conduct regular security training and awareness for administrators to recognize and report suspicious activities. 8. Maintain up-to-date inventory of Brocade Fabric OS deployments to prioritize patching and risk management efforts.