synced 2 MIN AGO
01 Record

CVE-2021-27793

ntermittent authorization failure in aaa tacacs+ with Brocade Fabric OS versions before Brocade Fabric OS v9.0.1b and after 9.0.0, also in Brocade Fabric OS before Brocade Fabric OS v8.2.3a and after

UnratedPUBLISHEDCNA: brocade
CNA base scoreUnratedNo CNA CVSS vector

02 Description

ntermittent authorization failure in aaa tacacs+ with Brocade Fabric OS versions before Brocade Fabric OS v9.0.1b and after 9.0.0, also in Brocade Fabric OS before Brocade Fabric OS v8.2.3a and after

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.90% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 59.4% of scored records. A rank, not a probability.
NVD base score
5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-08-12 14:24Z5 YR AGO
Last updated
2024-08-03 21:33Z2 YR AGO
Reserved
2021-02-26
Assigning CNA
brocade
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-863Incorrect AuthorizationClass
Data version
5.1
Document digest
ced27ce36752e7ccb8b87864acdf8862b1015c769b27d69fbfabb36304f28722

05 Affected products

VendorProductVersionsPlatforms
n/aBrocade Fabric OSVersions before Brocade Fabric OS v9.0.1b and after 9.0.0, also before Brocade Fabric OS v8.2.3a and after v8.2.0—

06 References