Vulnerability · Published Jun 24, 2021 · Assigned by dell
CVE-2021-21573
High 7.2
In plain English
A high-severity stack buffer overflow in BIOSConnect 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 20% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.3%top 79.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Dell BIOSConnect feature contains a buffer overflow vulnerability. An authenticated malicious admin user with local access to the system may potentially exploit this vulnerability to run arbitrary code and bypass UEFI restrictions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Dell | BIOSConnect | unspecified – before Gen 11, Gen 10 |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
References
- https://www.dell.com/support/kbdoc/en-us/000188682 x_refsource_MISC