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    CVE-2021-20487

    IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.

    Published:May 26, 2021
    Last Modified:Nov 21, 2024
    EPS:May 26, 2021
    EPSS Score:0.00128
    CVSS Score:9.1

    Affected Products

    Vendor
    Ibm
    Product
    8335-gth
    Vendor
    Ibm
    Product
    8335-gtx
    Vendor
    Ibm
    Product
    9008-22l
    Vendor
    Ibm
    Product
    9009-22a
    Vendor
    Ibm
    Product
    9009-22g
    Vendor
    Ibm
    Product
    9009-41a
    Vendor
    Ibm
    Product
    9009-41g
    Vendor
    Ibm
    Product
    9009-42a
    Vendor
    Ibm
    Product
    9009-42g
    Vendor
    Ibm
    Product
    9040-mr9
    Vendor
    Ibm
    Product
    9080-m9s
    Vendor
    Ibm
    Product
    9183-22x
    Vendor
    Ibm
    Product
    9223-22h
    Vendor
    Ibm
    Product
    9223-22s
    Vendor
    Ibm
    Product
    9223-42h
    Vendor
    Ibm
    Product
    9223-42s
    Vendor
    Ibm
    Product
    Power9 System Firmware
    Vendor
    Ibm
    Product
    Scale-out Lc System Firmware

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

    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