Is CVE-2017-11428 actively exploited?

No active exploitation of CVE-2017-11428 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-11428 be exploited remotely?

Yes. CVE-2017-11428 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-11428?

CVE-2017-11428 has a CVSS score of 7.7 (HIGH).

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HIGH

CVE-2017-11428

CWE-287Published: April 17, 2019· Updated: Jun 17, 2026

7.7

CVSS v3.1

Official Description

OneLogin Ruby-SAML 1.6.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

NVD Source

Technical Analysis

CVE-2017-11428 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.7.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.