CVE-2017-13099

wolfSSL Bleichenbacher/ROBOT

HIGH
7.5
CVSS Score
Published: December 13, 2017 at 01:00 AM UTC
Updated: June 17, 2026 at 01:04 AM UTC
4 products affected across 3 vendorswolfSSLInstantScalance W1750D Firmware

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Severity
HIGH7.5
Exploit prediction
EPSS 27%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 6.5.4.6
Affected range stops below 6.5.4.6, so it looks safe — our inference, not a vendor statement
v < 8.3.0.1
Affected range stops below 8.3.0.1, so it looks safe — our inference, not a vendor statement
siemens-scalance-w1750d (same device)
v < 3.12.2
Affected range stops below 3.12.2, so it looks safe — our inference, not a vendor statement
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

Third Party Advisoryx_refsource_CERT-VNIssue TrackingMitigationUS Government Resource
http://www.kb.cert.org/vuls/id/144389
VDB Entryx_refsource_BIDIssue TrackingMitigationThird Party Advisory
http://www.securityfocus.com/bid/102174
x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
https://github.com/wolfSSL/wolfssl/pull/1229
x_refsource_MISCIssue TrackingThird Party Advisory
https://robotattack.org/

CVSS

7.5HIGHcertcc
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-203

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