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    CVE-2023-46445

    An issue in AsyncSSH before 2.14.1 allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack, aka a "Rogue Extension Negotiation."

    Published:Nov 13, 2023
    Last Modified:Feb 25, 2026
    EPS:Nov 14, 2023
    EPSS Score:0.00623
    CVSS Score:5.9

    Affected Products

    Vendor
    Asyncssh Project
    Product
    Asyncssh

    Exploits

    No exploit reference

    References

    http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html
    https://github.com/advisories/GHSA-cfc2-wr2v-gxm5
    https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst
    https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/
    https://security.netapp.com/advisory/ntap-20231222-0001/
    https://www.terrapin-attack.com
    http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html
    https://github.com/advisories/GHSA-cfc2-wr2v-gxm5
    https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst
    https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5
    https://lists.debian.org/debian-lts-announce/2024/09/msg00042.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/
    https://security.netapp.com/advisory/ntap-20231222-0001/
    https://www.terrapin-attack.com

    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