Is CVE-2018-6517 actively exploited?

No active exploitation of CVE-2018-6517 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-6517 be exploited remotely?

Yes. CVE-2018-6517 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-6517?

CVE-2018-6517 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2018-6517

CWE-295Published: March 21, 2019· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

Prior to version 0.3.0, chloride's use of net-ssh resulted in host fingerprints for previously unknown hosts getting added to the user's known_hosts file without confirmation. In version 0.3.0 this is updated so that the user's known_hosts file is not updated by chloride.

NVD Source

Technical Analysis

CVE-2018-6517 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 full integrity compromise (data manipulation), with a CVSS base score of 7.5.