CVE-2026-87663

mediumpriority · track · 27EPSS 0.007 · 52 %ileDENLUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.67% (52nd) EPSS

CVSS 6.7 · medium

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cert_bund · ncsc_nl · nvd

EPSS · scored 2026-10-27

An authentication bypass and command injection vulnerability exists in the inter-switch remote execution service of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. When processing remote command execution IPC frames across the fabric, the receiving switch processes these commands at an elevated processing level without proper verification of transmitted parameters. This allows an attacker on a single fabric-connected switch to escalate privileges and execute arbitrary root commands locally or across other managed fabric members where remote execution functionality is enabled.

cvss

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4–7.1

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.8 · impact 5.9

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

v4.07.1highCVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · sirt@brocade.com

v4.04mediumCVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-290USCWE-290US

affected products (6)

Products and version ranges known to be affected.

Broadcom Fabric OS <10.0.1all versionscert_bundDE
Broadcom Fabric OS< 10.0.1cert_bundDE
Broadcom Fabric OS≤ vers:unknown/*ncsc_nlNL
HPE Brocade Fabric OS≤ vers:unknown/*ncsc_nlNL
broadcom fabric operating system< 9.2.2dnvdUScpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*
broadcom fabric operating system10.0.0 → 10.0.1nvdUScpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0432Kwetsbaarheden verholpen in HPE Brocade Fabric OSNL2026-10-16csaf · ncsc_nlNL
HPE heeft meerdere beveiligingsproblemen verholpen in Brocade Fabric OS, specifiek in versies vóór 10.0.1 en in de 9.2.x en 10.0.x release lijnen.
WID-SEC-W-2026-3817Broadcom Fabric OS: Mehrere SchwachstellenDeutsch2026-10-07csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Broadcom Fabric OS ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um Sicherheitsvorkehrungen zu umgehen und um beliebigen Programmcode auszuführen.

sources

Which sources assert this record, and when.

cert_bund ncsc_nl nvd NVD CVE.org MITRE

published 2026-10-08modified 2026-10-14

references (1) nvd

External citations — patches, advisories, analysis.

https://support.broadcom.com/external/content/SecurityAdvisories/0/39163Vendor Advisory

scry

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