CVE-2021-42775

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-11-12 · updated 2026-06-17

Description

Broadcom Emulex HBA Manager/One Command Manager versions before 11.4.425.0 and 12.8.542.31, if not installed in Strictly Local Management mode, have a vulnerability in the remote firmware download feature that could allow a user to place or replace an arbitrary file on the remote host. In non-secure mode, the user is unauthenticated.

Affected products

Broadcom Emulex Hba Manager: from 11.0.0 before 11.4.425.0; from 12.0.0 before 12.8.542.31 — fixed in 11.4.425.0, 12.8.542.31

How to fix

Upgrade to a fixed version: Broadcom Emulex Hba Manager 11.4.425.0, 12.8.542.31. Check the vendor advisory for mitigations.

References

https://docs.broadcom.com/doc/elx_HBAManager-Lin-RN12811-101.pdf
https://www.broadcom.com/products/storage/fibre-channel-host-bus-adapters/emulex-hba-manager
https://docs.broadcom.com/doc/elx_HBAManager-Lin-RN12811-101.pdf
https://www.broadcom.com/products/storage/fibre-channel-host-bus-adapters/emulex-hba-manager

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