CVE-2026-87662: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Brocade Fabric OS
Description
Brocade Fabric versions before 9.2.2d and 10.0.0 through 10.0.0a1 handling of specific download protocols utilizes unsanitized parameter strings. When processing upgrade requests, parameters are converted into system command strings and executed through a system shell interface. Because control characters and shell metacharacters in fields like the host or file path are not stripped or sanitized, an attacker can execute arbitrary shell commands with the firmware management daemon's elevated privileges.
CVSS v4.0
Score 7.0high
Affected software
Brocade
Fabric OS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Brocade Fabric OS versions prior to 9.2.2d and versions 10.0.0 through 10.0.0a1 improperly handle specific download protocol parameters by converting them directly into system command strings executed via a system shell. Because these parameters are not sanitized to remove control characters or shell metacharacters, an attacker can inject arbitrary OS commands, leading to command execution with elevated privileges.
Potential Impact
Successful exploitation allows an attacker with access to the upgrade request interface to execute arbitrary shell commands with the privileges of the firmware management daemon, potentially leading to full system compromise or disruption of device operation. The CVSS 4.0 score is 7 (high severity), reflecting local attack vector with low complexity but requiring high privileges and partial user interaction.
Mitigation Recommendations
No explicit patch or remediation information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the upgrade request interface to trusted administrators only and monitor for suspicious activity related to firmware management operations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- brocade
- Date Reserved
- 2026-09-08T22:51:12.105Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac71d2e2cdf04f656e10938
Added to database: 10/08/2026, 04:33:50 UTC
Last enriched: 10/08/2026, 04:48:34 UTC
Last updated: 10/08/2026, 09:48:07 UTC
Views: 6
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