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    CVE-2025-27591

    A privilege escalation vulnerability existed in the Below service prior to v0.9.0 due to the creation of a world-writable directory at /var/log/below. This could have allowed local unprivileged users to escalate to root privileges through symlink attacks that manipulate files such as /etc/shadow.

    Published:Mar 11, 2025
    Last Modified:Jul 3, 2025
    EPS:Mar 11, 2025
    EPSS Score:0.00009
    CVSS Score:6.8

    Affected Products

    Vendor
    Facebook
    Product
    Below

    Exploits

    http://www.openwall.com/lists/oss-security/2025/03/12/1https://github.com/00xCanelo/CVE-2025-27591https://github.com/0x00Jeff/CVE-2025-27591https://github.com/0xDTC/Below-Logger-Symlink-Attack_CVE-2025-27591https://github.com/alialucas7/CVE-2025-27591_PoChttps://github.com/BridgerAlderson/CVE-2025-27591-PoChttps://github.com/Cythonic1/CVE-2025-27591https://github.com/danil-koltsov/below-log-race-pochttps://github.com/DarksBlackSk/CVE-2025-27591https://github.com/dollarboysushil/Linux-Privilege-Escalation-CVE-2025-27591https://github.com/HOEUN-Visai/CVE-2025-27591-below-https://github.com/incommatose/CVE-2025-27591-PoChttps://github.com/krn966/CVE-2025-27591https://github.com/MoTechStore/CVE-2025-27591-PoChttps://github.com/obamalaolu/CVE-2025-27591https://github.com/rippsec/CVE-2025-27591-Meta-below-LPEhttps://github.com/rvizx/CVE-2025-27591https://github.com/rvzsec/CVE-2025-27591https://github.com/Stp1t/CVE-2025-27591https://github.com/Thekin-ctrl/CVE-2025-27591-Belowhttps://github.com/umutcamliyurt/CVE-2025-27591https://github.com/VisaiCyber/CVE-2025-27591-below-

    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