VULNERABILITY INTELLIGENCE

CVE-2001-1476

CVSS score7.5 HIGH
EPSS probability1.01%
CISA KEVNot currently listed
Published2001-01-18
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P

Description

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 correct or not.

Primary references