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    CVE-1999-0203

    In Sendmail, attackers can gain root privileges via SMTP by specifying an improper "mail from" address and an invalid "rcpt to" address that would cause the mail to bounce to a program.

    Published:Aug 17, 1995
    Last Modified:Apr 16, 2026
    EPS:Apr 25, 2000
    EPSS Score:0.00483
    CVSS Score:10

    Affected Products

    Vendor
    Eric Allman
    Product
    Sendmail

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2000-0319 (CVSS 5) — mail.local in Sendmail 8.10.x does not properly identify the .\n string which identifies the end of message te…
    CVE-1999-0976 (CVSS 2.1) — Sendmail allows local users to reinitialize the aliases database via the newaliases command, then cause a deni…
    CVE-1999-0393 (CVSS 5) — Remote attackers can cause a denial of service in Sendmail 8.8.x and 8.9.2 by sending messages with a large nu…
    CVE-1999-0205 (CVSS 5) — Denial of service in Sendmail 8.6.11 and 8.6.12.…
    CVE-1999-0047 (CVSS 10) — MIME conversion buffer overflow in sendmail versions 8.8.3 and 8.8.4.…
    CVE-1999-0204 (CVSS 10) — Sendmail 8.6.9 allows remote attackers to execute root commands, using ident.…
    CVE-1999-0163 (CVSS 7.2) — In older versions of Sendmail, an attacker could use a pipe character to execute root commands.…
    CVE-1999-0129 (CVSS 4.6) — Sendmail allows local users to write to a file and gain group permissions via a .forward or :include: file.…
    CVE-1999-0130 (CVSS 7.2) — Local users can start Sendmail in daemon mode and gain root privileges.…
    CVE-1999-0206 (CVSS 10) — MIME buffer overflow in Sendmail 8.8.0 and 8.8.1 gives root access.…

    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