CVE-2011-0766: Erlang Crypto

High severity, CVSS 7.8. EPSS: 3.1% chance of exploitation in the next 30 days.

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.

Affected products

• Erlang Crypto: up to and including 2.0.2.1
• Erlang Erlang/otp: version r11b-5 only; version r12b-5 only; version r13b only; version r13b02-1 only; version r13b03 only; version r13b04 only; …
• SSH SSH: up to and including 2.0.4

Published 2011-05-31. Last modified 2026-06-16.