CVE-2026-87681CWE-269privilege-escalation

CVE-2026-87681

Medium · published October 8, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
8.9
In the wild
Unconfirmed
What it is

An Access Control Bypass vulnerability exists in the Role-Based Access Control (RBAC) validation engine of Brocade Fabric OS versions before 10.0.1. When processing certain management protocol operations, the RBAC engine incorrectly categorizes non-standard action opcodes during permission checks. This allows authenticated users with read-only management privileges to bypass access controls and execute restricted administrative operations.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
7.1 · CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00197 · 8.9th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2026-10-08T05:16Z
Affected products (1)
ProductVersionsFixed in
broadcom/fabric_operating_system< 10.0.110.0.1
References (1)
https://support.broadcom.com/external/content/SecurityAdvisories/0/39075 · [email protected]
EPSS history
Timeline
  • 09 OCT 03:32Z
    EPSS moved — → 0%
    epss
  • 08 OCT 00:57Z
    An Access Control Bypass vulnerability exists in the Role-Based Access Control (RBAC) validation engine of Brocade Fabric OS versions before 10.0.1
    cvelistv5
  • 08 OCT 00:57Z
    An Access Control Bypass vulnerability exists in the Role-Based Access Control (RBAC) validation engine of Brocade Fabric OS versions before 10.0.1
    cvelistv5