CVE-2021-21572 is a buffer overflow vulnerability within Dell's BIOSConnect feature, affecting Dell products. This flaw allows an authenticated malicious administrator with local access to execute arbitrary code and bypass UEFI restrictions. Rated 7.5 HIGH, exploitation requires high privileges and local access, but successful attacks could lead to complete system compromise. While not currently in CISA's KEV catalog and lacking public exploit code, the vulnerability has garnered significant media attention and community discussion, indicating its potential impact.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.3.3CPE matchmatch criteria | cpe:2.3:o:dell:alienware_m15_r6_firmware:*:*:*:*:*:*:*:* | ||
< 1.4.1CPE matchmatch criteria | cpe:2.3:o:dell:chengming_3990_firmware:*:*:*:*:*:*:*:* | ||
< 1.4.1CPE matchmatch criteria | cpe:2.3:o:dell:chengming_3991_firmware:*:*:*:*:*:*:*:* | ||
< 1.4.0CPE matchmatch criteria | cpe:2.3:o:dell:g15_5510_firmware:*:*:*:*:*:*:*:* | ||
< 1.3.3CPE matchmatch criteria | cpe:2.3:o:dell:g15_5511_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.