CVE-2019-6172

A potential vulnerability in the SMI callback function used in Legacy USB driver using passed parameter without sufficient checking in some Lenovo ThinkPad models may allow arbitrary code execution.

Published: 2019-11-12 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-6172 is rated Low Risk (34.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.33%). 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-2019-6172

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 0.07% 0.33% +0.26%
2 2025-05-25 0.04% 0.07% +0.03%
3 2025-03-30 — 0.04% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-6172

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]
6.4 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]
4.4 2.0 MEDIUM
AV:L/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 3.4 6.4 [email protected]

Weakness enumeration for CVE-2019-6172

Affected software / configurations for CVE-2019-6172

Vendor Product Version Raw CPE
lenovo 510-15ikl_firmware — cpe:2.3:o:lenovo:510-15ikl_firmware:-:*:*:*:*:*:*:*
lenovo 510s-08ikl_firmware — cpe:2.3:o:lenovo:510s-08ikl_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_300-20ish_firmware — cpe:2.3:o:lenovo:ideacentre_300-20ish_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_300s-11ish_firmware — cpe:2.3:o:lenovo:ideacentre_300s-11ish_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_310s-08asr_firmware — cpe:2.3:o:lenovo:ideacentre_310s-08asr_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_310s-08igm_firmware — cpe:2.3:o:lenovo:ideacentre_310s-08igm_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_510-15icb_firmware — cpe:2.3:o:lenovo:ideacentre_510-15icb_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_510a-15icb_firmware — cpe:2.3:o:lenovo:ideacentre_510a-15icb_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_510s-08ish_firmware — cpe:2.3:o:lenovo:ideacentre_510s-08ish_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_700_firmware — cpe:2.3:o:lenovo:ideacentre_700_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_720-18apr_firmware — cpe:2.3:o:lenovo:ideacentre_720-18apr_firmware:-:*:*:*:*:*:*:*
lenovo ideacentre_720-18icb_firmware — cpe:2.3:o:lenovo:ideacentre_720-18icb_firmware:-:*:*:*:*:*:*:*
lenovo legion_c530-19icb_firmware — cpe:2.3:o:lenovo:legion_c530-19icb_firmware:-:*:*:*:*:*:*:*
lenovo legion_c730-19ico_firmware — cpe:2.3:o:lenovo:legion_c730-19ico_firmware:-:*:*:*:*:*:*:*
lenovo legion_t530-28apr_firmware — cpe:2.3:o:lenovo:legion_t530-28apr_firmware:-:*:*:*:*:*:*:*
lenovo legion_t530-28apr_reflash_firmware — cpe:2.3:o:lenovo:legion_t530-28apr_reflash_firmware:-:*:*:*:*:*:*:*
lenovo legion_t530-28icb_firmware — cpe:2.3:o:lenovo:legion_t530-28icb_firmware:-:*:*:*:*:*:*:*
lenovo legion_t530-28icb_reflash_firmware — cpe:2.3:o:lenovo:legion_t530-28icb_reflash_firmware:-:*:*:*:*:*:*:*
lenovo legion_t730-28ico_firmware — cpe:2.3:o:lenovo:legion_t730-28ico_firmware:-:*:*:*:*:*:*:*
lenovo legion_y520t_z370_firmware — cpe:2.3:o:lenovo:legion_y520t_z370_firmware:-:*:*:*:*:*:*:*
lenovo 63_firmware — cpe:2.3:o:lenovo:63_firmware:-:*:*:*:*:*:*:*
lenovo h50-30g_desktop_firmware — cpe:2.3:o:lenovo:h50-30g_desktop_firmware:-:*:*:*:*:*:*:*
lenovo m4500_firmware — cpe:2.3:o:lenovo:m4500_firmware:-:*:*:*:*:*:*:*
lenovo m4500_id_firmware — cpe:2.3:o:lenovo:m4500_id_firmware:-:*:*:*:*:*:*:*
lenovo m4550_id_firmware — cpe:2.3:o:lenovo:m4550_id_firmware:-:*:*:*:*:*:*:*
lenovo v330-15igm_firmware — cpe:2.3:o:lenovo:v330-15igm_firmware:-:*:*:*:*:*:*:*
lenovo v530s-07icb_firmware — cpe:2.3:o:lenovo:v530s-07icb_firmware:-:*:*:*:*:*:*:*
lenovo qitian_4500_firmware — cpe:2.3:o:lenovo:qitian_4500_firmware:-:*:*:*:*:*:*:*
lenovo qitian_b4550_firmware — cpe:2.3:o:lenovo:qitian_b4550_firmware:-:*:*:*:*:*:*:*
lenovo qitian_b4650_firmware — cpe:2.3:o:lenovo:qitian_b4650_firmware:-:*:*:*:*:*:*:*
lenovo qitian_b5900_firmware — cpe:2.3:o:lenovo:qitian_b5900_firmware:-:*:*:*:*:*:*:*
lenovo qitian_m4550_firmware — cpe:2.3:o:lenovo:qitian_m4550_firmware:-:*:*:*:*:*:*:*
lenovo qitian_m4600_firmware — cpe:2.3:o:lenovo:qitian_m4600_firmware:-:*:*:*:*:*:*:*
lenovo qitian_m4650_firmware — cpe:2.3:o:lenovo:qitian_m4650_firmware:-:*:*:*:*:*:*:*
lenovo qt_m410_firmware — cpe:2.3:o:lenovo:qt_m410_firmware:-:*:*:*:*:*:*:*
lenovo qt_b415_firmware — cpe:2.3:o:lenovo:qt_b415_firmware:-:*:*:*:*:*:*:*
lenovo qt_m415_firmware — cpe:2.3:o:lenovo:qt_m415_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_e73_firmware — cpe:2.3:o:lenovo:thinkcentre_e73_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_e73s_firmware — cpe:2.3:o:lenovo:thinkcentre_e73s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_e74_firmware — cpe:2.3:o:lenovo:thinkcentre_e74_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_e74s_firmware — cpe:2.3:o:lenovo:thinkcentre_e74s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_e75t_firmware — cpe:2.3:o:lenovo:thinkcentre_e75t_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_e75s_firmware — cpe:2.3:o:lenovo:thinkcentre_e75s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_e93_firmware — cpe:2.3:o:lenovo:thinkcentre_e93_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m4500k_firmware — cpe:2.3:o:lenovo:thinkcentre_m4500k_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m4500q_firmware — cpe:2.3:o:lenovo:thinkcentre_m4500q_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m4500t_firmware — cpe:2.3:o:lenovo:thinkcentre_m4500t_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m4500s_firmware — cpe:2.3:o:lenovo:thinkcentre_m4500s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m4600t_firmware — cpe:2.3:o:lenovo:thinkcentre_m4600t_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m4600s_firmware — cpe:2.3:o:lenovo:thinkcentre_m4600s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m600_firmware — cpe:2.3:o:lenovo:thinkcentre_m600_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m610_firmware — cpe:2.3:o:lenovo:thinkcentre_m610_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m625q_firmware — cpe:2.3:o:lenovo:thinkcentre_m625q_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m6500t_firmware — cpe:2.3:o:lenovo:thinkcentre_m6500t_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m6500s_firmware — cpe:2.3:o:lenovo:thinkcentre_m6500s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m6600_firmware — cpe:2.3:o:lenovo:thinkcentre_m6600_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m6600q_firmware — cpe:2.3:o:lenovo:thinkcentre_m6600q_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m6600t_firmware — cpe:2.3:o:lenovo:thinkcentre_m6600t_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m6600s_firmware — cpe:2.3:o:lenovo:thinkcentre_m6600s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m700q_firmware — cpe:2.3:o:lenovo:thinkcentre_m700q_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m700t_firmware — cpe:2.3:o:lenovo:thinkcentre_m700t_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m700s_firmware — cpe:2.3:o:lenovo:thinkcentre_m700s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m710e_firmware — cpe:2.3:o:lenovo:thinkcentre_m710e_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m710q_firmware — cpe:2.3:o:lenovo:thinkcentre_m710q_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m710t_firmware — cpe:2.3:o:lenovo:thinkcentre_m710t_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m710s_firmware — cpe:2.3:o:lenovo:thinkcentre_m710s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m715q_firmware — cpe:2.3:o:lenovo:thinkcentre_m715q_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m715q_rr_firmware — cpe:2.3:o:lenovo:thinkcentre_m715q_rr_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m715t_firmware — cpe:2.3:o:lenovo:thinkcentre_m715t_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m715s_firmware — cpe:2.3:o:lenovo:thinkcentre_m715s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m720q_firmware — cpe:2.3:o:lenovo:thinkcentre_m720q_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m720t_firmware — cpe:2.3:o:lenovo:thinkcentre_m720t_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m720s_firmware — cpe:2.3:o:lenovo:thinkcentre_m720s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m725s_firmware — cpe:2.3:o:lenovo:thinkcentre_m725s_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m73_firmware — cpe:2.3:o:lenovo:thinkcentre_m73_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m73_tiny_firmware — cpe:2.3:o:lenovo:thinkcentre_m73_tiny_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m73p_firmware — cpe:2.3:o:lenovo:thinkcentre_m73p_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m79_firmware — cpe:2.3:o:lenovo:thinkcentre_m79_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m800_firmware — cpe:2.3:o:lenovo:thinkcentre_m800_firmware:-:*:*:*:*:*:*:*
lenovo thinkcentre_m83_firmware — cpe:2.3:o:lenovo:thinkcentre_m83_firmware:-:*:*:*:*:*:*:*

References for CVE-2019-6172

cvelogic Threat Intelligence