CVE-2017-13098

7.5 HIGH 24% exploit odds Fix listed Crypto

What it is

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."

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure.
Exploit odds: 24.3% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2017-12-13 01:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 01:04 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 24.3% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2017-12-13 01:29 UTC
Last modified: 2026-06-17 01:04 UTC
Exploit probability: 24.3% · EPSS, next 30 days
Weakness: CWE-203
Record status: Modified

Affected

Bouncycastle bc-java < 1.59

Attack profile CVSS 3.0 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2017-13098.md and follow it. Check whether this project is affected by CVE-2017-13098. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

· More options · Status badge

Download Square Reddit

Fix and advisories

References

NVD record · CVE.org record