What is the CVSS score of CVE-2021-3719?

CVE-2021-3719 has a CVSS 3.1 base score of 6.7 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Thinkcentre E93 Firmware CVE-2021-3719

MEDIUM

Improper Input Validation (CWE-20)

2021-11-12 psirt@lenovo.com

6.7

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-20 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V2 - Validation and Business Logic Input validation, allowlisting
Impact	CVSS score of 6.7 (MEDIUM). Attack characteristics: local attack vector, low complexity, high privileges required, no user interaction not required.
Exploit ScenarioDerived	Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

A potential vulnerability in the SMI callback function that saves and restore boot script tables used for resuming from sleep state in some ThinkCentre and ThinkStation models may allow an attacker. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-20. A potential vulnerability in the SMI callback function that saves and restore boot script tables used for resuming from sleep state in some ThinkCentre and ThinkStation models may allow an attacker with local access and elevated privileges to execute arbitrary code. Affected products include: Lenovo Thinkcentre E93 Firmware, Lenovo Thinkcentre M600 Firmware, Lenovo Thinkcentre M700 Tiny Firmware, Lenovo Thinkcentre M73 Firmware, Lenovo Thinkcentre M73P Firmware.

Know when Thinkcentre E93 Firmware gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 6.7 MEDIUM

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

A potential vulnerability in the SMI callback function that saves and restore boot script tables used for resuming from sleep state in some ThinkCentre and ThinkStation models may allow an attacker with local access and elevated privileges to execute arbitrary code.

Threat Intelligence Overview

EPSS Score

0.2%

Top 85% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +34

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:o:lenovo:thinkcentre_e93_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m600_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m700_tiny_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m73_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m73p_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m800_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m818z_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m83_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m900_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m900x_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m93_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m93p_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m4500q_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m6500t\/s_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_m8500t\/s_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkcentre_x1_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkstation_p300_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkstation_p500_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkstation_p700_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:lenovo:thinkstation_p900_firmware:*:*:*:*:*:*:*:*

More in Thinkcentre E93 Firmware

View all

CVE-2019-6188 CRITICAL Act Now

9.8 Nov 12

The BIOS tamper detection mechanism was not triggered in Lenovo ThinkPad T460p, BIOS versions up to R07ET90W, and T470p,

CVE-2020-8333 HIGH This Week

7.8 Sep 24

A potential vulnerability in the SMI callback function used in the EEPROM driver in some Lenovo Desktops and ThinkStatio

CVE-2017-3753 MEDIUM This Month

6.8 Aug 10

A vulnerability has been identified in some Lenovo products that use UEFI (BIOS) code developed by American Megatrends,

CVE-2019-6172 MEDIUM This Month

6.4 Nov 12

A potential vulnerability in the SMI callback function used in Legacy USB driver using passed parameter without sufficie

CVE-2019-6170 MEDIUM This Month

6.4 Nov 12

A potential vulnerability in the SMI callback function used in the Legacy USB driver using boot services structure in ru

Same weakness CWE-20 – Improper Input Validation

View all

CVE-2021-44228 CRITICAL POC

10.0

CVE-2024-3400 CRITICAL POC

10.0

CVE-2022-47966 CRITICAL POC

9.8

CVE-2023-22515 CRITICAL POC

9.8

CVE-2009-0927 HIGH POC

8.8

CVE-2017-9791 CRITICAL POC

9.8

CVE-2017-15944 CRITICAL POC

9.8

CVE-2019-0604 CRITICAL POC

9.8

Same technique RCE

View all

CVE-2017-7269 CRITICAL POC

9.8

CVE-2012-4681 CRITICAL POC

9.8

CVE-2023-3519 CRITICAL POC

9.8

CVE-2015-5119 CRITICAL POC

9.8

CVE-2016-4117 CRITICAL POC

9.8

CVE-2015-3113 CRITICAL POC

9.8

References

Advisories & patches

ADVISORY https://support.lenovo.com/us/en/product_security/LEN-67440

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back