CVE-2020-1730

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CVSS 3.1

5.3 medium

EPSS

3%p87

Published

Apr 13, 2020 (Apr 13, 2020)

Modified

Jun 17, 2026

Description

A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.

Vendors: libssh netapp canonical fedoraproject redhat oracle
Products: libssh, cloud backup, ubuntu linux, fedora, enterprise linux, mysql workbench
Weakness: CWE-476
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

NVD CVE.org GitHub PoCs EPSS (3.1%)

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