CVE-2017-13099

What it is

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."

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure.

Exploit odds

27.4% 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

1. 2017-12-13 01:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 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: 27.4% 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

27.4% · EPSS, next 30 days

Weakness

CWE-203

Record status

Modified

Affected

• Wolfssl < 3.12.2
• Siemens Scalance w1750d Firmware < 8.3.0.1
• Arubanetworks Instant < 6.5.4.6

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

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-2017-13099.md and follow it. Check whether this project is affected by CVE-2017-13099. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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