PYSEC-2026-743

    Dashboard / Vulnerabilities / PYSEC-2026-743

    PYSEC-2026-743

    Published: 2 Jul 2026Last Modified: 6 Jul 2026

    Summary: Classic Buffer Overflow in pyo

    Details: Buffer Overflow Vulnerability exists in ajaxsoundstudio.com in Pyo < 1.03 in the Server_debug function, which allows remote attackers to conduct DoS attacks by deliberately passing on an overlong audio file name.

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-41499, https://github.com/belangeo/pyo/issues/222, https://github.com/belangeo/pyo, https://pypi.org/project/pyo, https://github.com/advisories/GHSA-5f5c-687x-g5qm

    Affected packages

    Package

    Name: pyo

    Purl: pkg:pypi/pyo

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.0.3

    Affected versions

    1.0.0
    1.0.1
    1.0.2

    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
    PYSEC-2026-743 | CVE-DB