Is CVE-2017-7540 actively exploited?

No active exploitation of CVE-2017-7540 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-7540 be exploited remotely?

Yes. CVE-2017-7540 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-7540?

CVE-2017-7540 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2017-7540

CWE-184Published: July 21, 2017· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

rubygem-safemode, as used in Foreman, versions 1.3.2 and earlier are vulnerable to bypassing safe mode limitations via special Ruby syntax. This can lead to deletion of objects for which the user does not have delete permissions or possibly to privilege escalation.

NVD Source

Technical Analysis

CVE-2017-7540 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.