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CVE-2017-13098

7.5
HIGHCVSS v3.1 Base Score
68.14%
MEDIUM RiskEPSS (99th percentile)

BouncyCastle TLS prior to version 1.0.3, when configured to use the JCE (Java Cryptography Extension) for cryptographic functions, provides a weak Bleichenbacher oracle when any TLS cipher suite using RSA key exchange is negotiated. An attacker can recover the private key from a vulnerable application. This vulnerability is referred to as "ROBOT."

Published: 12/13/2017
Modified: 5/12/2025
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Vulnerability Summary

CVSS v3 Score

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Score (Exploitation Probability)

68.14%MEDIUM Exploitation Risk
99th percentile

This vulnerability has a 68.14% probability of being exploited in the next 30 days, ranking higher than 99% of all scored CVEs.

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