What’s Vulnerable › Vulnerabilities

CVE-2001-0361

• Severity: medium (CVSS 4.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2001-06-27 · updated 2026-06-16
• Weakness: CWE-310

Description

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.

Affected products

• OpenSSH: 1.2.3, 2.1, 2.1.1
• Ssh: through 1.2.31

References

• 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
• http://marc.info/?l=bugtraq&m=98158450021686&w=2

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