CVE-2026-87666CWE-78command-injection

CVE-2026-87666

High · published October 8, 2026

CVSS v3.1
8.0
EPSS
3%
Percentile
85.0
In the wild
Unconfirmed
What it is

An OS command injection vulnerability exists in the time and zone management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. When updating system timezone settings via the REST API or configuration download routines, the system fails to sanitize input values before processing them in underlying shell execution routines. An authenticated user with low-privilege administrative access can exploit this vulnerability by submitting a crafted timezone string containing shell metacharacters. Successful exploitation allows the attacker to escape the restricted management environment and execute arbitrary shell commands with elevated privileges.

The record
Technical detail
CVSS v3.1
8.0 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.6 · CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.02572 · 85.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-10-08T08:17Z
Affected products (2)
ProductVersionsFixed in
broadcom/fabric_operating_system< 9.2.2d9.2.2d
broadcom/fabric_operating_system≥ 10.0.0, < 10.0.110.0.1
References (1)
EPSS history
Timeline
  • 09 OCT 03:32Z
    EPSS moved — → 2%
    epss
  • 08 OCT 03:53Z
    An OS command injection vulnerability exists in the time and zone management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1
    cvelistv5
  • 08 OCT 03:53Z
    An OS command injection vulnerability exists in the time and zone management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1
    cvelistv5