Medium severity · published Aug 12, 2021
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…
5.3
CVSS
0.9%
EPSS
No
On KEV
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 v8.2.0 could cause a user with a valid account to be unable to log into the switch.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Fabric Operating System · Broadcom
8.2.0 before 8.2.3; 9.0.0 before 9.0.1; 8.2.3; 9.0.1; 9.0.1a · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27793
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27793
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210819-0001/
Vendor Advisory
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1553
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