CVE-2011-1945: The elliptic curve cryptography (ECC) subsystem in OpenSSL 1.0.0d and earlier, when the Elliptic Curve Digi...

Security readout for executives and security teams

This flaw affects old OpenSSL ECC handling. In certain ECDSA-based TLS configurations, timing differences could help an attacker infer private keys. The business concern is certificate/private-key exposure on legacy systems, not a broad modern internet-wide issue based on the supplied evidence. Exposure is most likely on legacy systems still running OpenSSL 1.0.0d or earlier and using ECDHE_ECDSA with binary-field ECC curves. Modern supported OpenSSL deployments are not identified as affected in the source bundle. Treat as a legacy cryptography exposure with potentially high impact if affected systems remain in use. Prioritize discovery on public TLS services and regulated environments, then remediate through vendor-supported OpenSSL updates. Mitigation focus: Inventory systems running OpenSSL 1.0.0d or earlier.; Check referenced vendor advisories for fixed packages or supported upgrade guidance.; Prioritize internet-facing TLS services using ECDHE_ECDSA certificates or ECC configurations..

Prepared

Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.