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    CVE-2021-28235

    Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.

    Published:Apr 4, 2023
    Last Modified:Feb 18, 2025
    EPS:Apr 4, 2023
    EPSS Score:0.0044
    CVSS Score:9.8

    Affected Products

    Vendor
    Etcd
    Product
    Etcd
    Vendor
    Redhat
    Product
    Openstack

    Exploits

    https://github.com/h3ck13r/CVE-2021-28235

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2026-73500 (CVSS 8.7) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, …
    CVE-2026-73499 (CVSS 7.1) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, …
    CVE-2026-59818 (CVSS 6.5) — etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when e…
    CVE-2026-44283 (CVSS 0) — etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.1…
    CVE-2026-33413 (CVSS 8.8) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, …
    CVE-2026-33343 (CVSS 0) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, …
    CVE-2022-34038 (CVSS 7.5) — Etcd v3.5.4 allows remote attackers to cause a denial of service via function PageWriter.write in pagewriter.g…
    CVE-2023-32082 (CVSS 3.1) — etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.26 and 3.5.9…
    CVE-2020-15112 (CVSS 6.5) — In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of en…
    CVE-2020-15113 (CVSS 5.7) — In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the di…

    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