Medium severity · published Jul 8, 2025
CVE-2025-4663
Denial-of-Service (DoS) after Unusual or Exceptional Conditions vulnerability
4.9
CVSS
0.4%
EPSS
No
On KEV
Description
An Improper Check for Unusual or
Exceptional Conditions vulnerability in Brocade Fabric OS before 9.2.2.a
could allow an authenticated, network-based attacker to cause a
Denial-of-Service (DoS).
The
vulnerability is encountered when supportsave is invoked remotely,
using ssh command or SANnav inline ssh, and the corresponding ssh
session is terminated with Control C (^c ) before supportsave
completion.
This issue affects Brocade Fabric OS 9.0.0 through 9.2.2
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BF
Brocade Fabric OS · Broadcom
Brocade Fabric OS 9.0.0 through 9.2.2 · source: vendor
FO
Fabric Operating System · Broadcom
9.0.0 through 9.2.1b; 9.2.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-4663
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-4663
Vendor Advisory
https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/35815
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6.7
CVE-2025-1976
Code injection exposure in Fabric OS 9.1.0 through 9.1.1d6