Buffer overflow in Broadcom Fabric Operating System
CVE-2021-27790
The command ipfilter in Brocade Fabric OS before Brocade Fabric OS v.9.0.1a, v8.2.3, and v8.2.0_CBN4, and v7.4.2h uses unsafe string function to process user input. Authenticated attackers can abuse this vulnerability to exploit stack-based buffer overflows, allowing execution of arbitrary code as the root user account.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (37.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Broadcom Fabric Operating System
- Brocade Fabric OS — versions Brocade Fabric OS before Brocade Fabric OS v.9.0.1a, v8.2.3, and v8.2.0_CBN4, and v7.4.2h
Weakness classification (CWE)
References
- www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-s… (Vendor Advisory)
- security.netapp.com/advisory/ntap-20210819-0002/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27790?
- CVE-2021-27790 is a high-severity vulnerability in Broadcom Fabric Operating System, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-08-12.
- How severe is CVE-2021-27790?
- High severity. CVSS v3 base score is 7.8 out of 10.