ssh vulnerabilities

Latest ssh CVEs

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1. CVE-2023-48795 Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin

   Published 2023-12-18

   Medium·CVSS 5.9 EPSS 93.5% Public exploit

   The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end...

2. CVE-2011-0766 The 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 predictable seeds based on the current time, which...

   Published 2011-05-31

   High·CVSS 7.8

   The 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 predictable seeds based on the current time, which makes it easier for remote attackers to guess DSA host and SSH session keys.

3. CVE-2002-1715 SSH 1 through 3, and possibly other versions, allows local users to bypass restricted shells such as rbash or rksh by uploading a script to a world-writeable directory, then executing that script to g...

   Published 2005-06-21

   High·CVSS 7.2 EPSS 0.89%

   SSH 1 through 3, and possibly other versions, allows local users to bypass restricted shells such as rbash or rksh by uploading a script to a world-writeable directory, then executing that script to gain normal shell access.

4. CVE-2001-1476 SSH before 2.0, with RC4 encryption and the "disallow NULL passwords" option enabled, makes it easier for remote attackers to guess portions of user passwords by replaying user sessions with certain m...

   Published 2005-04-21

   High·CVSS 7.5 EPSS 1.0%

   SSH before 2.0, with RC4 encryption and the "disallow NULL passwords" option enabled, makes it easier for remote attackers to guess portions of user passwords by replaying user sessions with certain modifications, which trigger different messages depending on whether the guess is...

5. CVE-2001-1475 SSH before 2.0, when using RC4 and password authentication, allows remote attackers to replay messages until a new server key (VK) is generated.

   Published 2005-04-21

   High·CVSS 7.5 EPSS 1.5%

   SSH before 2.0, when using RC4 and password authentication, allows remote attackers to replay messages until a new server key (VK) is generated.

6. CVE-2001-1474 SSH before 2.0 disables host key checking when connecting to the localhost, which allows remote attackers to silently redirect connections to the localhost by poisoning the client's DNS cache.

   Published 2005-04-21

   Medium·CVSS 5.0 EPSS 1.2%

   SSH before 2.0 disables host key checking when connecting to the localhost, which allows remote attackers to silently redirect connections to the localhost by poisoning the client's DNS cache.

7. CVE-2001-1473 The 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 Session ID that matches the Session ID of the targ...

   Published 2005-04-21

   High·CVSS 7.5 EPSS 6.3%

   The 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 Session ID that matches the Session ID of the target, but which uses a public key pair that is weaker than the target's public key...

8. CVE-2001-1470 The IDEA cipher as implemented by SSH1 does not protect the final block of a message against modification, which allows remote attackers to modify the block without detection by changing its cyclic re...

   Published 2005-04-21

   Medium·CVSS 5.0 EPSS 1.1%

   The IDEA cipher as implemented by SSH1 does not protect the final block of a message against modification, which allows remote attackers to modify the block without detection by changing its cyclic redundancy check (CRC) to match the modifications to the message.

9. CVE-2001-1469 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 a...

   Published 2005-04-21

   Medium·CVSS 5.0 EPSS 1.2%

   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.

10. CVE-2000-0575 SSH 1.2.27 with Kerberos authentication support stores Kerberos tickets in a file which is created in the current directory of the user who is logging in, which could allow remote attackers to sniff t...

    Published 2002-03-09

    High·CVSS 7.2 EPSS 0.84%

    SSH 1.2.27 with Kerberos authentication support stores Kerberos tickets in a file which is created in the current directory of the user who is logging in, which could allow remote attackers to sniff the ticket cache if the home directory is installed on NFS.

11. 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 alt...

    Published 2001-09-18

    Medium·CVSS 4.0 EPSS 2.5%

    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.

12. CVE-2001-0572 The 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 obtain the following information via sniffing: (1) passw...

    Published 2001-07-27

    High·CVSS 7.5 EPSS 7.1%

    The 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 obtain the following information via sniffing: (1) password lengths or ranges of lengths, which simplifies brute force password guessing...

13. CVE-2001-0471 SSH 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 accounts without detection via a brute force attack...

    Published 2001-05-24

    High·CVSS 7.5 EPSS 5.6% Public exploit

    SSH 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 accounts without detection via a brute force attack.

14. CVE-2001-0259 ssh-keygen in ssh 1.2.27 - 1.2.30 with Secure-RPC can allow local attackers to recover a SUN-DES-1 magic phrase generated by another user, which the attacker can use to decrypt that user's private key...

    Published 2001-05-07

    Low·CVSS 3.6 EPSS 0.84% Public exploit

    ssh-keygen in ssh 1.2.27 - 1.2.30 with Secure-RPC can allow local attackers to recover a SUN-DES-1 magic phrase generated by another user, which the attacker can use to decrypt that user's private key file.

15. CVE-2001-0144 CORE SDI SSH1 CRC-32 compensation attack detector allows remote attackers to execute arbitrary commands on an SSH server or client via an integer overflow.

    Published 2001-05-07

    High·CVSS 10.0 EPSS 32.4% Public exploit

    CORE SDI SSH1 CRC-32 compensation attack detector allows remote attackers to execute arbitrary commands on an SSH server or client via an integer overflow.

16. CVE-2000-0992 Directory traversal vulnerability in scp in sshd 1.2.xx allows a remote malicious scp server to overwrite arbitrary files via a .. (dot dot) attack.

    Published 2001-01-22

    Medium·CVSS 5.0 EPSS 6.1%

    Directory traversal vulnerability in scp in sshd 1.2.xx allows a remote malicious scp server to overwrite arbitrary files via a .. (dot dot) attack.

17. CVE-1999-0248 A race condition in the authentication agent mechanism of sshd 1.2.17 allows an attacker to steal another user's credentials.

    Published 2000-10-13

    High·CVSS 10.0 EPSS 1.6%

    A race condition in the authentication agent mechanism of sshd 1.2.17 allows an attacker to steal another user's credentials.

18. CVE-1999-0787 The SSH authentication agent follows symlinks via a UNIX domain socket.

    Published 2000-10-13

    Low·CVSS 2.1 EPSS 1.0%

    The SSH authentication agent follows symlinks via a UNIX domain socket.

19. CVE-2000-0217 The default configuration of SSH allows X forwarding, which could allow a remote attacker to control a client's X sessions via a malicious xauth program.

    Published 2000-04-10

    Medium·CVSS 5.1 EPSS 0.97%

    The default configuration of SSH allows X forwarding, which could allow a remote attacker to control a client's X sessions via a malicious xauth program.

20. CVE-2000-0143 The SSH protocol server sshd allows local users without shell access to redirect a TCP connection through a service that uses the standard system password database for authentication, such as POP or F...

    Published 2000-02-16

    Medium·CVSS 4.6 EPSS 0.35%

    The SSH protocol server sshd allows local users without shell access to redirect a TCP connection through a service that uses the standard system password database for authentication, such as POP or FTP.

21. CVE-1999-0398 In some instances of SSH 1.2.27 and 2.0.11 on Linux systems, SSH will allow users with expired accounts to login.

    Published 2000-02-04

    Medium·CVSS 4.6 EPSS 0.39%

    In some instances of SSH 1.2.27 and 2.0.11 on Linux systems, SSH will allow users with expired accounts to login.

22. CVE-1999-0310 SSH 1.2.25 on HP-UX allows access to new user accounts.

    Published 1999-09-29

    High·CVSS 7.5 EPSS 1.5%

    SSH 1.2.25 on HP-UX allows access to new user accounts.

23. CVE-1999-0013 Stolen credentials from SSH clients via ssh-agent program, allowing other local users to access remote accounts belonging to the ssh-agent user.

    Published 1999-09-29

    High·CVSS 7.5 EPSS 1.1%

    Stolen credentials from SSH clients via ssh-agent program, allowing other local users to access remote accounts belonging to the ssh-agent user.

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.