CVE-2020-8323

A potential vulnerability in the SMI callback function used in the Legacy SD driver in some Lenovo ThinkPad, ThinkStation, and Lenovo Notebook models may allow arbitrary code execution.

Published: 2020-06-09 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-8323 is rated Low Risk (33.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.31%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2020-8323

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 2026-06-15 0.05% 0.31% +0.26%
2 2025-03-17 0.04% 0.05% +0.01%
3 2023-03-07 — 0.04% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-8323

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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.
 0.5 5.9 [email protected]
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-2020-8323

Affected software / configurations for CVE-2020-8323

Vendor Product Version Raw CPE
lenovo 330-14ast_firmware — cpe:2.3:o:lenovo:330-14ast_firmware:-:*:*:*:*:*:*:*
lenovo 330-15ast_firmware — cpe:2.3:o:lenovo:330-15ast_firmware:-:*:*:*:*:*:*:*
lenovo 330-17ast_firmware — cpe:2.3:o:lenovo:330-17ast_firmware:-:*:*:*:*:*:*:*
lenovo 340c-15api_firmware — cpe:2.3:o:lenovo:340c-15api_firmware:-:*:*:*:*:*:*:*
lenovo 340c-15ast_firmware — cpe:2.3:o:lenovo:340c-15ast_firmware:-:*:*:*:*:*:*:*
lenovo 720s_touch-15ikb_firmware — cpe:2.3:o:lenovo:720s_touch-15ikb_firmware:-:*:*:*:*:*:*:*
lenovo 720s-15ikb_firmware — cpe:2.3:o:lenovo:720s-15ikb_firmware:-:*:*:*:*:*:*:*
lenovo 730s-13iwl_firmware — cpe:2.3:o:lenovo:730s-13iwl_firmware:-:*:*:*:*:*:*:*
lenovo c640-iml_firmware — cpe:2.3:o:lenovo:c640-iml_firmware:-:*:*:*:*:*:*:*
lenovo e42-80_firmware — cpe:2.3:o:lenovo:e42-80_firmware:-:*:*:*:*:*:*:*
lenovo e52-80_firmware — cpe:2.3:o:lenovo:e52-80_firmware:-:*:*:*:*:*:*:*
lenovo k22-80_firmware — cpe:2.3:o:lenovo:k22-80_firmware:-:*:*:*:*:*:*:*
lenovo v720-12_firmware — cpe:2.3:o:lenovo:v720-12_firmware:-:*:*:*:*:*:*:*
lenovo k32-80_kbl_firmware — cpe:2.3:o:lenovo:k32-80_kbl_firmware:-:*:*:*:*:*:*:*
lenovo k32-80_skl_firmware — cpe:2.3:o:lenovo:k32-80_skl_firmware:-:*:*:*:*:*:*:*
lenovo miix_720-12ikb_firmware — cpe:2.3:o:lenovo:miix_720-12ikb_firmware:-:*:*:*:*:*:*:*
lenovo s145-14api_firmware — cpe:2.3:o:lenovo:s145-14api_firmware:-:*:*:*:*:*:*:*
lenovo s145-14ast_firmware — cpe:2.3:o:lenovo:s145-14ast_firmware:-:*:*:*:*:*:*:*
lenovo s145-15api_firmware — cpe:2.3:o:lenovo:s145-15api_firmware:-:*:*:*:*:*:*:*
lenovo s145-15ast_firmware — cpe:2.3:o:lenovo:s145-15ast_firmware:-:*:*:*:*:*:*:*
lenovo s540-13api_firmware — cpe:2.3:o:lenovo:s540-13api_firmware:-:*:*:*:*:*:*:*
lenovo s750-iil_firmware — cpe:2.3:o:lenovo:s750-iil_firmware:-:*:*:*:*:*:*:*
lenovo s940-14iwl_firmware — cpe:2.3:o:lenovo:s940-14iwl_firmware:-:*:*:*:*:*:*:*
lenovo thinkbook_13s-iwl_firmware — cpe:2.3:o:lenovo:thinkbook_13s-iwl_firmware:-:*:*:*:*:*:*:*
lenovo thinkbook_14s-iwl_firmware — cpe:2.3:o:lenovo:thinkbook_14s-iwl_firmware:-:*:*:*:*:*:*:*
lenovo v110-14ast_firmware — cpe:2.3:o:lenovo:v110-14ast_firmware:-:*:*:*:*:*:*:*
lenovo v110-14ikb_firmware — cpe:2.3:o:lenovo:v110-14ikb_firmware:-:*:*:*:*:*:*:*
lenovo v110-15ast_firmware — cpe:2.3:o:lenovo:v110-15ast_firmware:-:*:*:*:*:*:*:*
lenovo v130-15igm_firmware — cpe:2.3:o:lenovo:v130-15igm_firmware:-:*:*:*:*:*:*:*
lenovo v130-15ikb_firmware — cpe:2.3:o:lenovo:v130-15ikb_firmware:-:*:*:*:*:*:*:*
lenovo v310-15igm_firmware — cpe:2.3:o:lenovo:v310-15igm_firmware:-:*:*:*:*:*:*:*
lenovo v330-15igm_firmware — cpe:2.3:o:lenovo:v330-15igm_firmware:-:*:*:*:*:*:*:*
lenovo v330-15ikb_firmware — cpe:2.3:o:lenovo:v330-15ikb_firmware:-:*:*:*:*:*:*:*
lenovo v330-15isk_firmware — cpe:2.3:o:lenovo:v330-15isk_firmware:-:*:*:*:*:*:*:*
lenovo v340-iil_firmware — cpe:2.3:o:lenovo:v340-iil_firmware:-:*:*:*:*:*:*:*
lenovo v340-iml_firmware — cpe:2.3:o:lenovo:v340-iml_firmware:-:*:*:*:*:*:*:*
lenovo v540s-13_firmware — cpe:2.3:o:lenovo:v540s-13_firmware:-:*:*:*:*:*:*:*
lenovo 14iwl_firmware — cpe:2.3:o:lenovo:14iwl_firmware:-:*:*:*:*:*:*:*
lenovo v730-13ikb_firmware — cpe:2.3:o:lenovo:v730-13ikb_firmware:-:*:*:*:*:*:*:*
lenovo v730-13isk_firmware — cpe:2.3:o:lenovo:v730-13isk_firmware:-:*:*:*:*:*:*:*
lenovo v730-15ikb_firmware — cpe:2.3:o:lenovo:v730-15ikb_firmware:-:*:*:*:*:*:*:*
lenovo wei5-15ikb_firmware — cpe:2.3:o:lenovo:wei5-15ikb_firmware:-:*:*:*:*:*:*:*
lenovo xiaoxin_14-ast_qc_2019_firmware — cpe:2.3:o:lenovo:xiaoxin_14-ast_qc_2019_firmware:-:*:*:*:*:*:*:*
lenovo xx-14api_qc_2019_firmware — cpe:2.3:o:lenovo:xx-14api_qc_2019_firmware:-:*:*:*:*:*:*:*
lenovo yoga_s730-13iwl_firmware — cpe:2.3:o:lenovo:yoga_s730-13iwl_firmware:-:*:*:*:*:*:*:*
lenovo yoga_s940-14iwl_firmware — cpe:2.3:o:lenovo:yoga_s940-14iwl_firmware:-:*:*:*:*:*:*:*
lenovo 6_pro-13-iwl_firmware — cpe:2.3:o:lenovo:6_pro-13-iwl_firmware:-:*:*:*:*:*:*:*
lenovo 6_pro-14-iwl_firmware — cpe:2.3:o:lenovo:6_pro-14-iwl_firmware:-:*:*:*:*:*:*:*
lenovo e53-80_firmware — cpe:2.3:o:lenovo:e53-80_firmware:-:*:*:*:*:*:*:*
lenovo k3_firmware — cpe:2.3:o:lenovo:k3_firmware:-:*:*:*:*:*:*:*
lenovo k4-iwl_firmware — cpe:2.3:o:lenovo:k4-iwl_firmware:-:*:*:*:*:*:*:*
lenovo thinkpad_11e_yoga_gen_6_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_11e_yoga_gen_6_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_11e_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_11e_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_yoga_11e_3rd_gen_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_yoga_11e_3rd_gen_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_yoga_11e_4th_gen_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_yoga_11e_4th_gen_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_yoga_11e_5th_gen_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_yoga_11e_5th_gen_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_13_2nd_gen_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_13_2nd_gen_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_13_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_13_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_a275_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_a275_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_a285_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_a285_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_a475_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_a475_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_a485_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_a485_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e14_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e14_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e15_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e15_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_r14_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_r14_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_s3_gen_2_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_s3_gen_2_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e455_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e455_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e555_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e555_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e460_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e460_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e560_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e560_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e465_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e465_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e565_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e565_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e470_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e470_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e570_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e570_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e475_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e475_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e575_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e575_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e480_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e480_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e580_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e580_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e485_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e485_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad_e585_firmware < 2020-07-10 cpe:2.3:o:lenovo:thinkpad_e585_firmware:*:*:*:*:*:*:*:*

References for CVE-2020-8323

cvelogic Threat Intelligence