# CVE-2017-13099

## Summary

- **CVE ID:** CVE-2017-13099
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
- **CWE:** CWE-203
- **Published:** Dec 13, 2017
- **Last Modified:** Mar 14, 2026

## Description

wolfSSL prior to version 3.12.2 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 wolfSSL application. This vulnerability is referred to as "ROBOT."

## Affected Products

- wolfSSL — wolfSSL (<3.12.2)

## References

- [CNA](http://www.securityfocus.com/bid/102174)
- [CNA](https://robotattack.org/)
- [CNA](https://cert-portal.siemens.com/productcert/pdf/ssa-464260.pdf)
- [CNA](http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-002.txt)
- [CNA](http://www.kb.cert.org/vuls/id/144389)
- [CNA](https://github.com/wolfSSL/wolfssl/pull/1229)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 76.64%
- **EPSS Percentile:** 98.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._