CVE-2021-3971 is a medium-severity vulnerability affecting certain Lenovo Notebook devices, stemming from a legacy driver mistakenly included in the BIOS image. An attacker with elevated privileges could exploit this flaw by modifying an NVRAM variable to alter the firmware protection region, potentially leading to high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community attention and media coverage, indicating awareness within the cybersecurity landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< e8cn33wwCPE matchmatch criteria | cpe:2.3:o:lenovo:ideapad_3-14ada05_firmware:*:*:*:*:*:*:*:* | ||
< hbcn21wwCPE matchmatch criteria | cpe:2.3:o:lenovo:ideapad_3-14ada6_firmware:*:*:*:*:*:*:*:* | ||
< glcn43wwCPE matchmatch criteria | cpe:2.3:o:lenovo:ideapad_3-14alc6_firmware:*:*:*:*:*:*:*:* | ||
< dzcn42wwCPE matchmatch criteria | cpe:2.3:o:lenovo:ideapad_3-14are05_firmware:*:*:*:*:*:*:*:* | ||
< hbcn21wwCPE matchmatch criteria | cpe:2.3:o:lenovo:ideapad_3-15ada6_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.