Vulnerability · Published Aug 12, 2021 · Assigned by brocade
CVE-2021-27791
Medium 5.4
In plain English
A medium-severity security flaw in Brocade Fabric OS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.6%top 50.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The function that is used to parse the Authentication header in Brocade Fabric OS Web application service before Brocade Fabric OS v9.0.1a and v8.2.3a fails to properly process a malformed authentication header from the client, resulting in reading memory addresses outside the intended range. An unauthenticated attacker could discover a request, which could bypass the authentication process.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Brocade Fabric OS | Brocade Fabric OS before Brocade Fabric OS v9.0.1a and v8.2.3a |