CVE-2019-14318: Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation.

Security readout for executives and security teams

Crypto++ 8.3.0 and earlier may leak ECDSA private keys through timing differences during signing. An attacker who can observe many signing operations could recover the key. This is most urgent for services that repeatedly sign attacker-influenced data or expose signing behavior over a network. Exposure depends on whether an application embeds Crypto++ 8.3.0 or earlier and uses it for ECDSA signing. Network services, authentication systems, licensing systems, or APIs that perform repeated signatures for users are higher risk. Systems using Crypto++ without ECDSA signing are not directly exposed by this CVE. Prioritize systems where Crypto++ performs ECDSA signing for externally reachable services. The business impact is key compromise, which can undermine authentication, signing trust, or transaction integrity. Treat confirmed exposed signing services as high priority even though no active exploitation evidence is provided. Mitigation focus: Inventory applications and dependencies using Crypto++ 8.3.0 or earlier.; Check Crypto++ and OS vendor guidance for fixed packages or recommended updates.; Apply relevant distro or vendor security updates where available..

Prepared

Jun 6, 2026, 14:06 UTC (UTC+00:00)

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