CVE-2026-87682

Elevated command execution via management input injection

Published Oct 8, 2026 · Updated Oct 8, 2026

OS command injection in Brocade Communications Systems Fabric OS before 10.0.1 allows remote authenticated users to execute elevated commands. Remote management connection validation and directory-account session verification pass input containing shell metacharacters to internal system execution wrappers. Exploitation requires access to the switch management network and an authenticated user or compromised directory service account.

CVSS severity8.6
High
EPSS probability1.67%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Brocade Communications Systems Fabric OS before 10.0.1 allows remote authenticated users to execute elevated commands. Remote management connection validation and directory-account session verification pass input containing shell metacharacters to internal system execution wrappers. Exploitation requires access to the switch management network and an authenticated user or compromised directory service account.

The record

CVE
CVE-2026-87682
Published
Oct 8, 2026
Updated
Oct 8, 2026
Vendor
Brocade Communications Systems
Product
Fabric OS
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <10.0.1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Brocade Communications Systems · Fabric OSversion=0 <10.0.1

Published CVSS scores

8.6BroadcomCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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