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    CVE-2016-10009

    Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.

    Published:Dec 19, 2016
    Last Modified:May 29, 2026
    EPS:Jan 5, 2017
    EPSS Score:0.01579
    CVSS Score:7.3

    Affected Products

    Vendor
    Openbsd
    Product
    Openssh
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://www.exploit-db.com/exploits/40963

    Common Weakness Enumeration

    CWE-426 Untrusted Search Path

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-38 Leveraging/Manipulating Configuration File Search Paths

    Related CVEs

    CVE-2026-73283 (CVSS 2.5) — In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tun…
    CVE-2026-73282 (CVSS 4.8) — In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forward…
    CVE-2026-73281 (CVSS 3.5) — In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locall…
    CVE-2026-60002 (CVSS 7.7) — ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchan…
    CVE-2026-60001 (CVSS 6.5) — sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay.…
    CVE-2026-60000 (CVSS 3.7) — sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from ex…
    CVE-2026-59999 (CVSS 5.9) — In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, b…
    CVE-2026-59998 (CVSS 4.8) — sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no v…
    CVE-2026-59997 (CVSS 4.2) — internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be …
    CVE-2026-59996 (CVSS 4.2) — scp in OpenSSH before 10.4 may place a file in the parent directory of an intended directory when the copy occ…

    References

    http://packetstormsecurity.com/files/140261/OpenSSH-Arbitrary-Library-Loading.html
    http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html
    http://seclists.org/fulldisclosure/2023/Jul/31
    http://www.openwall.com/lists/oss-security/2016/12/19/2
    http://www.openwall.com/lists/oss-security/2023/07/19/9
    http://www.openwall.com/lists/oss-security/2023/07/20/1
    http://www.securityfocus.com/bid/94968
    http://www.securitytracker.com/id/1037490
    http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637
    https://access.redhat.com/errata/RHSA-2017:2029
    https://bugs.chromium.org/p/project-zero/issues/detail?id=1009
    https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
    https://github.com/openbsd/src/commit/9476ce1dd37d3c3218d5640b74c34c65e5f4efe5
    https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
    https://security.FreeBSD.org/advisories/FreeBSD-SA-17:01.openssh.asc
    https://security.netapp.com/advisory/ntap-20171130-0002/
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us
    https://usn.ubuntu.com/3538-1/
    https://www.exploit-db.com/exploits/40963/
    https://www.openssh.com/txt/release-7.4
    http://packetstormsecurity.com/files/140261/OpenSSH-Arbitrary-Library-Loading.html
    http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html
    http://seclists.org/fulldisclosure/2023/Jul/31
    http://www.openwall.com/lists/oss-security/2016/12/19/2
    http://www.openwall.com/lists/oss-security/2023/07/19/9
    http://www.openwall.com/lists/oss-security/2023/07/20/1
    http://www.securityfocus.com/bid/94968
    http://www.securitytracker.com/id/1037490
    http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637
    https://access.redhat.com/errata/RHSA-2017:2029
    https://bugs.chromium.org/p/project-zero/issues/detail?id=1009
    https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
    https://github.com/openbsd/src/commit/9476ce1dd37d3c3218d5640b74c34c65e5f4efe5
    https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
    https://security.FreeBSD.org/advisories/FreeBSD-SA-17:01.openssh.asc
    https://security.netapp.com/advisory/ntap-20171130-0002/
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us
    https://usn.ubuntu.com/3538-1/
    https://www.exploit-db.com/exploits/40963/
    https://www.openssh.com/txt/release-7.4

    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