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    CVE-2021-21539

    Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface.

    Published:Apr 30, 2021
    Last Modified:Nov 21, 2024
    EPS:Apr 30, 2021
    EPSS Score:0.0043
    CVSS Score:5.9

    Affected Products

    Vendor
    Dell
    Product
    Idrac9 Firmware

    Exploits

    No exploit reference

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    CVE-2021-21544 (CVSS 2.7) — Dell EMC iDRAC9 versions prior to 4.40.00.00 contain an improper authentication vulnerability. A remote authen…
    CVE-2021-21543 (CVSS 4.8) — Dell EMC iDRAC9 versions prior to 4.40.00.00 contain multiple stored cross-site scripting vulnerabilities. A r…
    CVE-2021-21542 (CVSS 4.8) — Dell EMC iDRAC9 versions prior to 4.40.10.00 contain multiple stored cross-site scripting vulnerabilities. A r…
    CVE-2021-21541 (CVSS 6.1) — Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a DOM-based cross-site scripting vulnerability. A remote …
    CVE-2021-21540 (CVSS 5.9) — Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a stack-based overflow vulnerability. A remote authentica…
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    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