9.8

CVE-2021-42774: broadcom emulex_hba_manager Classic Buffer Overflow

CVSS: 9.8v3.1CriticalModified
Published 12-11-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-42774 is a critical (CVSS 9.8) Classic Buffer Overflow vulnerability in broadcom emulex_hba_manager. EPSS estimates a 2.43% chance of exploitation in the next 30 days, higher than 84% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.43%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-11-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.43%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.43% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Broadcom1 product

1 vendor · 1 product

References

2 links