CVE-2017-13099
HIGHEPSS 98th pctlDescription
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."
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploit Intelligence
Very high risk: more likely to be exploited than 98% of all known CVEs.
References
Related Vulnerabilities
Other CWE-203 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2017-5753 | Medium | 5.6 | 93% | - | Fix |
| CVE-2003-0190 | Medium | 5.0 | 77% | - | Fix |
| CVE-2017-5715 | Medium | 5.6 | 74% | - | Fix |
| CVE-2018-3639 | Medium | 5.5 | 61% | - | Fix |
| CVE-2023-28770 | High | 7.5 | 58% | - | Fix |
| CVE-2004-1602 | Medium | 5.0 | 31% | - | - |
Common questions
How do I fix CVE-2017-13099?
Upgrade wolfssl on debian 11 to 3.13.0+dfsg-1 or later.
Is CVE-2017-13099 being actively exploited?
Not that we know of. CVE-2017-13099 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 24.9% is the estimated probability that it will be exploited in the next 30 days. That is higher than 98% of all scored CVEs.
How severe is CVE-2017-13099?
CVE-2017-13099 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2017-13099 affect?
Published advisories record a fix for wolfssl (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.