Medium severity · published Oct 8, 2026
CVE-2026-87661
Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1 directly accepts Apache configuration file data during service setup or re-initialization
5.7
CVSS
0.2%
EPSS
No
On KEV
Description
Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1 directly accepts Apache configuration file data during service setup or re-initialization. An attacker capable of corrupting the configuration structure will prevent the web management service from starting or recovering during service bring-up, leading to a persistent Denial of Service (DoS) of the administrative web interface.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Fabric OS · Brocade
before 9.2.2d; 10.0.0 through 10.0.0a1 · source: vendor
FO
Fabric Operating System · Broadcom
before 9.2.2d; 10.0.0 before 10.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-87661
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-87661
support.broadcom.com
https://support.broadcom.com/external/content/SecurityAdvisories/0/39160
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