Vulnerability record · CVE-2001-1469 · published 18 January 2001

CVE-2001-1469: Ssh vulnerability

Ssh · Ssh

The RC4 stream cipher as used by SSH1 allows remote attackers to modify messages without detection by XORing the original message's cyclic redundancy check (CRC) with the CRC of a mask consisting of all the bits of the original message that were modified.

5.0 CVSS 2.0 Medium EPSS 1.2% · top 32.7%

5.0CVSS 2.0 base score

1.2%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References, 2 tagged exploit

16 Jun 2026Last modified by NVD

Description

AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Ssh Ssh

References

Link	Tags
http://www.kb.cert.org/vuls/id/25309	ExploitUS Government Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/6449
http://www.kb.cert.org/vuls/id/25309	ExploitUS Government Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/6449

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2001-0144Openbsd openssh vulnerabilityCORE SDI SSH1 CRC-32 compensation attack detector allows remote attackers to execute arbitrary commands on an SSH server or client via an integer ove…EPSS 32%12 Mar 2001 10.0CVE-1999-0248Ssh vulnerabilityA race condition in the authentication agent mechanism of sshd 1.2.17 allows an attacker to steal another user's credentials.EPSS 1.6%1 Jan 1999 8.4CVE-1999-0013Ssh insufficiently protected credentials vulnerabilityStolen credentials from SSH clients via ssh-agent program, allowing other local users to access remote accounts belonging to the ssh-agent user.EPSS 1.1%22 Jan 1998 7.8CVE-2011-0766Erlang crypto vulnerabilityThe random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses…EPSS 3.1%31 May 2011 7.5CVE-2001-0572Openbsd openssh vulnerabilityThe SSH protocols 1 and 2 (aka SSH-2) as implemented in OpenSSH and other packages have various weaknesses which can allow a remote attacker to obtai…EPSS 7.1%22 Aug 2001 7.5CVE-2001-0471Ssh vulnerabilitySSH daemon version 1 (aka SSHD-1 or SSH-1) 1.2.30 and earlier does not log repeated login attempts, which could allow remote attackers to compromise …EPSS 5.6%27 Jun 2001 7.5CVE-2001-1473Ssh vulnerabilityThe SSH-1 protocol allows remote servers to conduct man-in-the-middle attacks and replay a client challenge response to a target server by creating a…EPSS 6.3%18 Jan 2001 7.5CVE-2001-1475Ssh vulnerabilitySSH before 2.0, when using RC4 and password authentication, allows remote attackers to replay messages until a new server key (VK) is generated.EPSS 1.5%18 Jan 2001

Source: NIST National Vulnerability Database (record CVE-2001-1469), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.