7.8

CVE-2021-27792: broadcom fabric_operating_system

CVSS: 7.8v3.1HighModified
Published 12-08-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-27792 is a high (CVSS 7.8) vulnerability in broadcom fabric_operating_system. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.3% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.27%
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. 12-08-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

0.00 pp

From 0.27% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.27%

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

No weakness data has been published for this record.

Affected systems

Broadcom1 product

1 vendor · 1 product

References

3 links