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    CVE-2021-20704

    Buffer overflow vulnerability in the compatible API with previous versions CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.

    Published:Nov 2, 2021
    Last Modified:Nov 21, 2024
    EPS:Nov 2, 2021
    EPSS Score:0.01346
    CVSS Score:9.8

    Affected Products

    Vendor
    Nec
    Product
    Clusterpro X
    Vendor
    Nec
    Product
    Clusterpro X Singleserversafe
    Vendor
    Nec
    Product
    Expresscluster X
    Vendor
    Nec
    Product
    Expresscluster X Singleserversafe

    Exploits

    No exploit reference

    Related CVEs

    CVE-2025-11546 (CVSS 9.3) — CLUSTERPRO X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2 and EXPRESSCLUSTER X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 …
    CVE-2021-20705 (CVSS 7.5) — Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLU…
    CVE-2021-20707 (CVSS 7.5) — Improper input validation vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EX…
    CVE-2021-20703 (CVSS 9.8) — Buffer overflow vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUST…
    CVE-2021-20701 (CVSS 9.8) — Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3…
    CVE-2021-20706 (CVSS 7.5) — Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLU…
    CVE-2021-20702 (CVSS 9.8) — Buffer overflow vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUST…
    CVE-2021-20700 (CVSS 9.8) — Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3…

    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