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sudo vulnerabilities

Vulnerabilities published for sudo in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 8

  1. CVE-2026-96512

    High · CVSS 7.8EPSS 0.15%Public exploitFix available

    Sudo: sudo: tz environment variable allows bypass of notbefore/notafter time-based authorization

    A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing 'Z' timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to execute commands outside the intended time window. Authentication is not bypassed; only the time-based authorization check is affected.

    sudoOperating systems
    • Update to 1.9.9-1ubuntu2.7
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  7. CVE-2023-22809

    High · CVSS 7.8EPSS 55.37%Public exploitFix available

    CVE-2023-22809

    In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to append arbitrary entries to the list of files to process. This can lead to privilege escalation. Affected versions are 1.8.0 through 1.9.12.p1. The problem exists because a user-specified editor may contain a "--" argument that defeats a protection mechanism, e.g., an EDITOR='vim -- /path/to/extra/file' value.

    sudoOperating systems
    • Update to 1.9.9-1ubuntu2.2
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

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