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CVE-2021-42774

CRITICALCVSS 9.8/10EPSS 2.35%

Last modified

CVE-2021-42774 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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 buffer overflow vulnerability in the remote firmware download feature that could allow remote unauthenticated users to perform various attacks. In non-secure mode, the user is unauthenticated.. EPSS estimates a 2.35% chance of exploitation in the next 30 days.

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 buffer overflow vulnerability in the remote firmware download feature that could allow remote unauthenticated users to perform various attacks. In non-secure mode, the user is unauthenticated.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.35%

81.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
BroadcomEmulex Hba Manager>= 11.0.0, < 11.4.425.0
BroadcomEmulex Hba Manager>= 12.0.0, < 12.8.542.31

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-42774?
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 buffer overflow vulnerability in the remote firmware download feature that could allow remote unauthenticated users to perform various attacks. In non-secure mode, the user is unauthenticated.
How severe is CVE-2021-42774?
CVE-2021-42774 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.35% probability of exploitation in the next 30 days.
How do I fix CVE-2021-42774?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-42774?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST