Auth bypass in Dell Idrac9 Firmware
CVE-2021-21538
Dell EMC iDRAC9 versions 4.40.00.00 and later, but prior to 4.40.10.00, contain an improper authentication vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability to gain access to the virtual console.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.015 (74.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.015 · change: -0.002
Affected products
- Dell Idrac9 Firmware
- Dell Integrated Remote Access Controller (Idrac) — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.dell.com/support/kbdoc/000186420 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-21538?
- CVE-2021-21538 is a critical-severity vulnerability in Dell Idrac9 Firmware, classified under Improper Authentication. CVSS score: 9.6/10. Published 2021-07-29.
- How severe is CVE-2021-21538?
- Critical severity. CVSS v3 base score is 9.6 out of 10.
- Is CVE-2021-21538 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.