Is CVE-2018-11749 actively exploited?

No active exploitation of CVE-2018-11749 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-11749 be exploited remotely?

Yes. CVE-2018-11749 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-11749?

CVE-2018-11749 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2018-11749

CRITICAL

CVE-2018-11749

CWE-319Published: August 24, 2018· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

When users are configured to use startTLS with RBAC LDAP, at login time, the user's credentials are sent via plaintext to the LDAP server. This affects Puppet Enterprise 2018.1.3, 2017.3.9, and 2016.4.14, and is fixed in Puppet Enterprise 2018.1.4, 2017.3.10, and 2016.4.15. It scored an 8.5 CVSS score.

NVD Source

Technical Analysis

CVE-2018-11749 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.