CVE-2015-7940

MediumCVSS 5.0/10Last modified Jun 17, 2026

Description

The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve, which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman (ECDH) key exchanges, aka an "invalid curve attack."

Metrics

CVSS 2.0 5.0/10AV:N/AC:L/Au:N/C:P/I:N/A:N

Weakness enumeration

CWE-200 CWE-310

Affected software

No affected versions have been published.

Timeline

Published: Nov 9, 2015
Last modified: Jun 17, 2026
NVD status: Modified

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