CVE-2020-12357

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

Published: 2021-06-09 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12357 is rated Moderate Risk (44.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.26%). Review affected assets and schedule remediation.

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-2020-12357

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 2026-04-23 0.11% 0.26% +0.14%
2 2025-11-21 0.15% 0.11% -0.04%
3 2025-11-18 — 0.15% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12357

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/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:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
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.
 0.8 5.9 [email protected]
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2020-12357

Affected software / configurations for CVE-2020-12357

Vendor Product Version Raw CPE
intel bios — cpe:2.3:o:intel:bios:-:*:*:*:*:*:*:*
netapp cloud_backup — cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
netapp aff_bios — cpe:2.3:o:netapp:aff_bios:-:*:*:*:*:*:*:*
netapp e-series_bios — cpe:2.3:o:netapp:e-series_bios:-:*:*:*:*:*:*:*
netapp fas_bios — cpe:2.3:o:netapp:fas_bios:-:*:*:*:*:*:*:*
netapp hci_compute_node_bios — cpe:2.3:o:netapp:hci_compute_node_bios:-:*:*:*:*:*:*:*
netapp hci_storage_node_bios — cpe:2.3:o:netapp:hci_storage_node_bios:-:*:*:*:*:*:*:*
netapp solidfire_bios — cpe:2.3:o:netapp:solidfire_bios:-:*:*:*:*:*:*:*
siemens simatic_field_pg_m6_firmware — cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc427e_firmware — cpe:2.3:o:siemens:simatic_ipc427e_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc477e_firmware — cpe:2.3:o:siemens:simatic_ipc477e_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc477e_pro_firmware — cpe:2.3:o:siemens:simatic_ipc477e_pro_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc547g_firmware — cpe:2.3:o:siemens:simatic_ipc547g_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc627e_firmware — cpe:2.3:o:siemens:simatic_ipc627e_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc647e_firmware — cpe:2.3:o:siemens:simatic_ipc647e_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc677e_firmware — cpe:2.3:o:siemens:simatic_ipc677e_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc847e_firmware — cpe:2.3:o:siemens:simatic_ipc847e_firmware:*:*:*:*:*:*:*:*
siemens simatic_itp1000_firmware — cpe:2.3:o:siemens:simatic_itp1000_firmware:*:*:*:*:*:*:*:*
siemens simatic_cpu_1518-4_firmware — cpe:2.3:o:siemens:simatic_cpu_1518-4_firmware:*:*:*:*:*:*:*:*

References for CVE-2020-12357

cvelogic Threat Intelligence