CVE-2001-1141: OpenSSL

Medium severity, CVSS 5.0. EPSS: 5% chance of exploitation in the next 30 days.

The Pseudo-Random Number Generator (PRNG) in SSLeay and OpenSSL before 0.9.6b allows attackers to use the output of small PRNG requests to determine the internal state information, which could be used by attackers to predict future pseudo-random numbers.

Affected products

• OpenSSL OpenSSL: version 0.9.1c only; version 0.9.2b only; version 0.9.3 only; version 0.9.4 only; version 0.9.5 only; version 0.9.6 only; …
• Ssleay Ssleay: version 0.8.1 only; version 0.9 only; version 0.9.1 only

Published 2001-07-10. Last modified 2026-06-16.