UBUNTU-CVE-2026-78133

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    UBUNTU-CVE-2026-78133

    Published: 7 Sept 2026Last Modified: 21 Sept 2026
    Upstream:
    CVE-2026-78133
    Aliases:
    USN-8789-1

    Summary:

    Details: libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.

    References: https://ubuntu.com/security/CVE-2026-78133, https://www.cve.org/CVERecord?id=CVE-2026-78133, https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78133).html, https://ubuntu.com/security/notices/USN-8789-1

    Affected packages

    Package

    Name: strongswan

    Purl: pkg:deb/ubuntu/strongswan?arch=source&distro=resolute

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -6.0.4-1ubuntu3.2

    Affected versions

    6.0.1-6ubuntu4
    6.0.1-6ubuntu5
    6.0.4-1ubuntu1
    6.0.4-1ubuntu2
    6.0.4-1ubuntu3
    6.0.4-1ubuntu3.1

    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
    UBUNTU-CVE-2026-78133 | CVE-DB