Medium severity · published Oct 8, 2026
CVE-2026-87677
An OS command injection vulnerability exists in the account management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1
6.6
CVSS
0.6%
EPSS
No
On KEV
Description
An OS command injection vulnerability exists in the account management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. When an administrator initiates an account deletion, the system invokes an internal maintenance routine to clean up cryptographic keys associated with the target account. Malformed account names previously accepted by Fabric OS can cause the execution of embedded shell metacharacters, triggering command injection.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Fabric OS · Brocade
before 9.2.2d; 10.0.0 through 10.0.0a1 · source: vendor
FO
Fabric Operating System · Broadcom
before 9.2.2d; 10.0.0 before 10.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-87677
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-87677
support.broadcom.com
https://support.broadcom.com/external/content/SecurityAdvisories/0/39131
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