CVE-2023-46849

    Dashboard / Vulnerabilities / CVE-2023-46849

    CVE-2023-46849

    Published: 11 Nov 2023Last Modified: 12 Aug 2026

    Summary:

    Details: Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

    References: https://community.openvpn.net/openvpn/wiki/CVE-2023-46849, https://lists.fedoraproject.org/archives/list/[email protected]/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/, https://lists.fedoraproject.org/archives/list/[email protected]/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46849.json, https://nvd.nist.gov/vuln/detail/CVE-2023-46849, https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/, https://www.debian.org/security/2023/dsa-5555

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- b999466418dddb89721be5455f03bacd9b221b1d
    Fixed -None

    Affected versions

    v2.6.6
    v2.6.5
    v2.6.4
    v2.6.3
    v2.6.2
    v2.6.1
    v2.6.0

    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
    CVE-2023-46849 | CVE-DB