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    CVE-2001-0361

    Implementations of SSH version 1.5, including (1) OpenSSH up to version 2.3.0, (2) AppGate, and (3) ssh-1 up to version 1.2.31, in certain configurations, allow a remote attacker to decrypt and/or alter traffic via a "Bleichenbacher attack" on PKCS#1 version 1.5.

    Published:Jun 27, 2001
    Last Modified:Apr 16, 2026
    EPS:Sep 18, 2001
    EPSS Score:0.01308
    CVSS Score:4

    Affected Products

    Vendor
    Openbsd
    Product
    Openssh
    Vendor
    Ssh
    Product
    Ssh

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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

    ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:24.ssh.asc
    http://marc.info/?l=bugtraq&m=98158450021686&w=2
    http://www.ciac.org/ciac/bulletins/l-047.shtml
    http://www.debian.org/security/2001/dsa-023
    http://www.debian.org/security/2001/dsa-027
    http://www.debian.org/security/2001/dsa-086
    http://www.novell.com/linux/security/advisories/adv004_ssh.html
    http://www.osvdb.org/2116
    http://www.securityfocus.com/bid/2344
    https://exchange.xforce.ibmcloud.com/vulnerabilities/6082
    ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:24.ssh.asc
    http://marc.info/?l=bugtraq&m=98158450021686&w=2
    http://www.ciac.org/ciac/bulletins/l-047.shtml
    http://www.debian.org/security/2001/dsa-023
    http://www.debian.org/security/2001/dsa-027
    http://www.debian.org/security/2001/dsa-086
    http://www.novell.com/linux/security/advisories/adv004_ssh.html
    http://www.osvdb.org/2116
    http://www.securityfocus.com/bid/2344
    https://exchange.xforce.ibmcloud.com/vulnerabilities/6082

    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