Vulnerability · Published Jun 14, 2021 · Assigned by dell
CVE-2021-21557
High 8.1
In plain English
A high-severity improper input validation in PowerEdge BIOS Intel 15G from Dell. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.3%top 71.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Dell PowerEdge Server BIOS and select Dell Precision Rack BIOS contain an out-of-bounds array access vulnerability. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of service, arbitrary code execution, or information disclosure in System Management Mode.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Dell | PowerEdge BIOS Intel 15G | unspecified – before 2.11.2 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L
References
- https://www.dell.com/support/kbdoc/000187958 x_refsource_MISC