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    CVE-2026-105841

    lrzsz before 0.13.0 contains an OS command injection vulnerability in the lrz receive utility's pipe mode that allows remote senders to execute commands by supplying crafted filenames. When lrz runs under a suffixed name such as lrztar, procheader() in src/lrz.c passes the unescaped ZMODEM/YMODEM filename to popen(), so shell metacharacters execute as the receiving user.

    Published:Oct 6, 2026
    Last Modified:Oct 9, 2026
    EPS:Oct 6, 2026
    EPSS Score:0.00948
    CVSS Score:7.5

    Affected Products

    Vendor
    Lrzsz Project
    Product
    Lrzsz
    Vendor
    Uwe Ohse
    Product
    Lrzsz

    Exploits

    No exploit reference

    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