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CVE-2021-27792

HIGH
7.8
CVSS Score
Published: August 12, 2021 at 02:24 PM UTC
Updated: June 17, 2026 at 03:45 AM UTC
1 product affected across 1 vendorFabric Operating System

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%

Description

The request handling functions in web management interface of Brocade Fabric OS versions before v9.0.1a, v8.2.3a, and v7.4.2h do not properly handle malformed user input, resulting in a service crash. An authenticated attacker could use this weakness to cause the FOS HTTP application handler to crash, requiring a reboot.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fabric Operating System· Broadcom
95%
v < 7.4.2hv < 9.0.1a8.0.0 ≤ v < 8.2.3a9.0.0 ≤ v < 9.0.1a
Affected range stops below 7.4.2h, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.2.3a, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.0.1a, so it looks safe — our inference, not a vendor statement

References (3)

x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210819-0002/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1490
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1492

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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