CVE-2001-1169: Bell Communications Research S Key

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

keyinit in S/Key does not require authentication to initialize a one-time password sequence, which allows an attacker who has gained privileges to a user account to create new one-time passwords for use in other activities that may use S/Key authentication, such as sudo.

Affected products

• Bell Communications Research S Key: version gold only

Published 2001-09-02. Last modified 2026-06-16.