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High 8.5Published Oct 8, 2026

CVE-2026-87687An authorization and input validation vulnerability exists in Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1.

Updated under an hour ago ()

Does this affect you?

It affects Brocade Fabric OS and 1 other product. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.21%, higher than 10% of scored CVEs.

An authorization and input validation vulnerability exists in Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. An authenticated user with restricted privileges in one Virtual Fabric can exploit this issue by submitting a specially crafted request containing an arbitrary fabric identifier. This allows the user to perform unauthorized cross-fabric operations and view configuration details within tenants/Virtual Fabrics to which they have not been granted access.

CVSS
8.5 HIGH (v4.0, CNA)CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-88
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.21% (percentile 10)
Assigned by
brocade
NVD analysis
Analyzed
Record last updated
Oct 9, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Brocade Fabric OS
brocade:fabric_os (from the name)
before 9.2.2d; from 10.0.0 through 10.0.0a1
CNA record
broadcom fabric_operating_system
broadcom:fabric_operating_system
before 9.2.2d; from 10.0.0 before 10.0.1
NVD

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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