CVE-2021-0187

Improper access control in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

Published: 2023-02-16 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-0187 is rated Low Risk (18.3/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.05%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-0187

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-25 0.04% 0.05% +0.01%
2 2025-11-21 0.06% 0.04% -0.02%
3 2025-11-18 — 0.06% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-0187

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.2 3.1 LOW
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.5 1.4 [email protected]
8.2 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.5 6.0 [email protected]

Weakness enumeration for CVE-2021-0187

OS Trackers for CVE-2021-0187

vendor priority summary link
redhat low — https://access.redhat.com/security/cve/CVE-2021-0187

Affected software / configurations for CVE-2021-0187

Vendor Product Version Raw CPE
intel xeon_gold_6342_firmware — cpe:2.3:o:intel:xeon_gold_6342_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6346_firmware — cpe:2.3:o:intel:xeon_gold_6346_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6330_firmware — cpe:2.3:o:intel:xeon_gold_6330_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8360y_firmware — cpe:2.3:o:intel:xeon_platinum_8360y_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6354_firmware — cpe:2.3:o:intel:xeon_gold_6354_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6314u_firmware — cpe:2.3:o:intel:xeon_gold_6314u_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6338n_firmware — cpe:2.3:o:intel:xeon_gold_6338n_firmware:-:*:*:*:*:*:*:*
intel xeon_silver_4314_firmware — cpe:2.3:o:intel:xeon_silver_4314_firmware:-:*:*:*:*:*:*:*
intel xeon_silver_4316_firmware — cpe:2.3:o:intel:xeon_silver_4316_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_5318y_firmware — cpe:2.3:o:intel:xeon_gold_5318y_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_5317_firmware — cpe:2.3:o:intel:xeon_gold_5317_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6334_firmware — cpe:2.3:o:intel:xeon_gold_6334_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6326_firmware — cpe:2.3:o:intel:xeon_gold_6326_firmware:-:*:*:*:*:*:*:*
intel xeon_silver_4309y_firmware — cpe:2.3:o:intel:xeon_silver_4309y_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6348_firmware — cpe:2.3:o:intel:xeon_gold_6348_firmware:-:*:*:*:*:*:*:*
intel xeon_silver_4310_firmware — cpe:2.3:o:intel:xeon_silver_4310_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6338t_firmware — cpe:2.3:o:intel:xeon_gold_6338t_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_5318s_firmware — cpe:2.3:o:intel:xeon_gold_5318s_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6336y_firmware — cpe:2.3:o:intel:xeon_gold_6336y_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_5318n_firmware — cpe:2.3:o:intel:xeon_gold_5318n_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6312u_firmware — cpe:2.3:o:intel:xeon_gold_6312u_firmware:-:*:*:*:*:*:*:*
intel xeon_silver_4310t_firmware — cpe:2.3:o:intel:xeon_silver_4310t_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_5320t_firmware — cpe:2.3:o:intel:xeon_gold_5320t_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_5320_firmware — cpe:2.3:o:intel:xeon_gold_5320_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_5315y_firmware — cpe:2.3:o:intel:xeon_gold_5315y_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8352m_firmware — cpe:2.3:o:intel:xeon_platinum_8352m_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8362_firmware — cpe:2.3:o:intel:xeon_platinum_8362_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8368_firmware — cpe:2.3:o:intel:xeon_platinum_8368_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8358_firmware — cpe:2.3:o:intel:xeon_platinum_8358_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8352y_firmware — cpe:2.3:o:intel:xeon_platinum_8352y_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6338_firmware — cpe:2.3:o:intel:xeon_gold_6338_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6330n_firmware — cpe:2.3:o:intel:xeon_gold_6330n_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8380_firmware — cpe:2.3:o:intel:xeon_platinum_8380_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8351n_firmware — cpe:2.3:o:intel:xeon_platinum_8351n_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8368q_firmware — cpe:2.3:o:intel:xeon_platinum_8368q_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8352s_firmware — cpe:2.3:o:intel:xeon_platinum_8352s_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8358p_firmware — cpe:2.3:o:intel:xeon_platinum_8358p_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8352v_firmware — cpe:2.3:o:intel:xeon_platinum_8352v_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8360hl_firmware — cpe:2.3:o:intel:xeon_platinum_8360hl_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8360h_firmware — cpe:2.3:o:intel:xeon_platinum_8360h_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8356h_firmware — cpe:2.3:o:intel:xeon_platinum_8356h_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6330h_firmware — cpe:2.3:o:intel:xeon_gold_6330h_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8380h_firmware — cpe:2.3:o:intel:xeon_platinum_8380h_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_5318h_firmware — cpe:2.3:o:intel:xeon_gold_5318h_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6328h_firmware — cpe:2.3:o:intel:xeon_gold_6328h_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_5320h_firmware — cpe:2.3:o:intel:xeon_gold_5320h_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8353h_firmware — cpe:2.3:o:intel:xeon_platinum_8353h_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8354h_firmware — cpe:2.3:o:intel:xeon_platinum_8354h_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6348h_firmware — cpe:2.3:o:intel:xeon_gold_6348h_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8376h_firmware — cpe:2.3:o:intel:xeon_platinum_8376h_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8376hl_firmware — cpe:2.3:o:intel:xeon_platinum_8376hl_firmware:-:*:*:*:*:*:*:*
intel xeon_platinum_8380hl_firmware — cpe:2.3:o:intel:xeon_platinum_8380hl_firmware:-:*:*:*:*:*:*:*
intel xeon_gold_6328hl_firmware — cpe:2.3:o:intel:xeon_gold_6328hl_firmware:-:*:*:*:*:*:*:*

References for CVE-2021-0187

cvelogic Threat Intelligence