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    Dashboard / CVE / CVE-2021-4212

    CVE-2021-4212

    A potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacker with local access and elevated privileges to execute arbitrary code.

    Published:Apr 22, 2022
    Last Modified:Nov 21, 2024
    EPS:Apr 22, 2022
    EPSS Score:0.0011
    CVSS Score:6.7

    Affected Products

    Vendor
    Lenovo
    Product
    C340-14iml
    Vendor
    Lenovo
    Product
    C340-14iml Firmware
    Vendor
    Lenovo
    Product
    C340-15iml
    Vendor
    Lenovo
    Product
    C340-15iml Firmware
    Vendor
    Lenovo
    Product
    D330-10igm
    Vendor
    Lenovo
    Product
    D330-10igm Firmware
    Vendor
    Lenovo
    Product
    Duet 3-10igl5
    Vendor
    Lenovo
    Product
    Duet 3-10igl5 Firmware
    Vendor
    Lenovo
    Product
    E41-50
    Vendor
    Lenovo
    Product
    E41-50 Firmware
    Vendor
    Lenovo
    Product
    Flex-14iml
    Vendor
    Lenovo
    Product
    Flex-14iml Firmware
    Vendor
    Lenovo
    Product
    Flex-15iml
    Vendor
    Lenovo
    Product
    Flex-15iml Firmware
    Vendor
    Lenovo
    Product
    Ideapad 3-14are05
    Vendor
    Lenovo
    Product
    Ideapad 3-14are05 Firmware
    Vendor
    Lenovo
    Product
    Ideapad 3-15are05
    Vendor
    Lenovo
    Product
    Ideapad 3-15are05 Firmware
    Vendor
    Lenovo
    Product
    Ideapad 3-17are05
    Vendor
    Lenovo
    Product
    Ideapad 3-17are05 Firmware
    Vendor
    Lenovo
    Product
    Ideapad 5-14alc05
    Vendor
    Lenovo
    Product
    Ideapad 5-14alc05 Firmware
    Vendor
    Lenovo
    Product
    Ideapad 5-14are05
    Vendor
    Lenovo
    Product
    Ideapad 5-14are05 Firmware
    Vendor
    Lenovo
    Product
    Ideapad 5-15itl05
    Vendor
    Lenovo
    Product
    Ideapad 5-15itl05 Firmware
    Vendor
    Lenovo
    Product
    Ideapad 5 Pro-14acn6
    Vendor
    Lenovo
    Product
    Ideapad 5 Pro-14acn6 Firmware
    Vendor
    Lenovo
    Product
    Ideapad 5 Pro-14itl6
    Vendor
    Lenovo
    Product
    Ideapad 5 Pro-14itl6 Firmware
    Vendor
    Lenovo
    Product
    Ideapad 5 Pro-16ihu6
    Vendor
    Lenovo
    Product
    Ideapad 5 Pro-16ihu6 Firmware
    Vendor
    Lenovo
    Product
    Ideapad Creator 5-15imh05
    Vendor
    Lenovo
    Product
    Ideapad Creator 5-15imh05 Firmware
    Vendor
    Lenovo
    Product
    Ideapad Gaming 3-15ach6
    Vendor
    Lenovo
    Product
    Ideapad Gaming 3-15ach6 Firmware
    Vendor
    Lenovo
    Product
    Ideapad Gaming 3-15arh05
    Vendor
    Lenovo
    Product
    Ideapad Gaming 3-15arh05 Firmware
    Vendor
    Lenovo
    Product
    Ideapad Gaming 3-15imh05
    Vendor
    Lenovo
    Product
    Ideapad Gaming 3-15imh05 Firmware
    Vendor
    Lenovo
    Product
    L340-15irh
    Vendor
    Lenovo
    Product
    L340-15irh Firmware
    Vendor
    Lenovo
    Product
    L340-15iwl
    Vendor
    Lenovo
    Product
    L340-15iwl Firmware
    Vendor
    Lenovo
    Product
    L340-15iwl Touch
    Vendor
    Lenovo
    Product
    L340-15iwl Touch Firmware
    Vendor
    Lenovo
    Product
    L340-17irh
    Vendor
    Lenovo
    Product
    L340-17irh Firmware
    Vendor
    Lenovo
    Product
    L340-17iwl
    Vendor
    Lenovo
    Product
    L340-17iwl Firmware
    Vendor
    Lenovo
    Product
    Legion Y540-15irh
    Vendor
    Lenovo
    Product
    Legion Y540-15irh-pg0
    Vendor
    Lenovo
    Product
    Legion Y540-15irh-pg0 Firmware
    Vendor
    Lenovo
    Product
    Legion Y540-15irh Firmware
    Vendor
    Lenovo
    Product
    Legion Y540-17irh
    Vendor
    Lenovo
    Product
    Legion Y540-17irh-pg0
    Vendor
    Lenovo
    Product
    Legion Y540-17irh-pg0 Firmware
    Vendor
    Lenovo
    Product
    Legion Y540-17irh Firmware
    Vendor
    Lenovo
    Product
    Legion Y545
    Vendor
    Lenovo
    Product
    Legion Y545-pg0
    Vendor
    Lenovo
    Product
    Legion Y545-pg0 Firmware
    Vendor
    Lenovo
    Product
    Legion Y545 Firmware
    Vendor
    Lenovo
    Product
    Legion Y7000-2019
    Vendor
    Lenovo
    Product
    Legion Y7000-2019-pg0
    Vendor
    Lenovo
    Product
    Legion Y7000-2019-pg0 Firmware
    Vendor
    Lenovo
    Product
    Legion Y7000-2019 Firmware
    Vendor
    Lenovo
    Product
    S340-13iml
    Vendor
    Lenovo
    Product
    S340-13iml Firmware
    Vendor
    Lenovo
    Product
    S340-14api
    Vendor
    Lenovo
    Product
    S340-14api Firmware
    Vendor
    Lenovo
    Product
    S340-14iml
    Vendor
    Lenovo
    Product
    S340-14iml Firmware
    Vendor
    Lenovo
    Product
    S340-15api
    Vendor
    Lenovo
    Product
    S340-15api Firmware
    Vendor
    Lenovo
    Product
    S340-15api Touch
    Vendor
    Lenovo
    Product
    S340-15api Touch Firmware
    Vendor
    Lenovo
    Product
    S340-15iml
    Vendor
    Lenovo
    Product
    S340-15iml Firmware
    Vendor
    Lenovo
    Product
    S540-14iml
    Vendor
    Lenovo
    Product
    S540-14iml Firmware
    Vendor
    Lenovo
    Product
    S540-14iml Touch
    Vendor
    Lenovo
    Product
    S540-14iml Touch Firmware
    Vendor
    Lenovo
    Product
    S540-15iml
    Vendor
    Lenovo
    Product
    S540-15iml Firmware
    Vendor
    Lenovo
    Product
    Slim 7-14are05
    Vendor
    Lenovo
    Product
    Slim 7-14are05 Firmware
    Vendor
    Lenovo
    Product
    Slim 7-14itl05
    Vendor
    Lenovo
    Product
    Slim 7-14itl05 Firmware
    Vendor
    Lenovo
    Product
    Slim 7-15iil05
    Vendor
    Lenovo
    Product
    Slim 7-15iil05 Firmware
    Vendor
    Lenovo
    Product
    Slim 7-15imh05
    Vendor
    Lenovo
    Product
    Slim 7-15imh05 Firmware
    Vendor
    Lenovo
    Product
    Slim 7-15itl05
    Vendor
    Lenovo
    Product
    Slim 7-15itl05 Firmware
    Vendor
    Lenovo
    Product
    Thinkbook 13x Itg
    Vendor
    Lenovo
    Product
    Thinkbook 13x Itg Firmware
    Vendor
    Lenovo
    Product
    Thinkbook 14 G3 Itl
    Vendor
    Lenovo
    Product
    Thinkbook 14 G3 Itl Firmware
    Vendor
    Lenovo
    Product
    Thinkbook Plus G2 Itg
    Vendor
    Lenovo
    Product
    Thinkbook Plus G2 Itg Firmware
    Vendor
    Lenovo
    Product
    V14-are
    Vendor
    Lenovo
    Product
    V14-are Firmware
    Vendor
    Lenovo
    Product
    V140-15iwl
    Vendor
    Lenovo
    Product
    V140-15iwl Firmware
    Vendor
    Lenovo
    Product
    V340-17iwl
    Vendor
    Lenovo
    Product
    V340-17iwl Firmware
    Vendor
    Lenovo
    Product
    Yoga 6-13alc6
    Vendor
    Lenovo
    Product
    Yoga 6-13alc6 Firmware
    Vendor
    Lenovo
    Product
    Yoga Creator 7-15imh05
    Vendor
    Lenovo
    Product
    Yoga Creator 7-15imh05 Firmware
    Vendor
    Lenovo
    Product
    Yoga Slim 7-14are05
    Vendor
    Lenovo
    Product
    Yoga Slim 7-14are05 Firmware
    Vendor
    Lenovo
    Product
    Yoga Slim 7-14iil05
    Vendor
    Lenovo
    Product
    Yoga Slim 7-14iil05 Firmware
    Vendor
    Lenovo
    Product
    Yoga Slim 7-14itl05
    Vendor
    Lenovo
    Product
    Yoga Slim 7-14itl05 Firmware
    Vendor
    Lenovo
    Product
    Yoga Slim 7-15iil05
    Vendor
    Lenovo
    Product
    Yoga Slim 7-15iil05 Firmware
    Vendor
    Lenovo
    Product
    Yoga Slim 7-15imh05
    Vendor
    Lenovo
    Product
    Yoga Slim 7-15imh05 Firmware
    Vendor
    Lenovo
    Product
    Yoga Slim 7-15itl05
    Vendor
    Lenovo
    Product
    Yoga Slim 7-15itl05 Firmware
    Vendor
    Lenovo
    Product
    Yoga Slim 7 Carbon 13itl5
    Vendor
    Lenovo
    Product
    Yoga Slim 7 Carbon 13itl5 Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-20 Improper Input Validation

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-104 Cross Zone Scripting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-153 Input Data Manipulation
    CAPEC-182 Flash Injection
    CAPEC-209 XSS Using MIME Type Mismatch
    CAPEC-22 Exploiting Trust in Client
    CAPEC-23 File Content Injection
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-473 Signature Spoof
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-588 DOM-Based XSS
    CAPEC-63 Cross-Site Scripting (XSS)
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-664 Server Side Request Forgery
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-73 User-Controlled Filename
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-81 Web Server Logs Tampering
    CAPEC-83 XPath Injection
    CAPEC-85 AJAX Footprinting
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High