Is CVE-2017-7540 in the CISA KEV catalog?

No. CVE-2017-7540 is not currently on the CISA Known Exploited Vulnerabilities list.

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

CVE-2017-7540 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-7540?

CVE-2017-7540 has an EPSS score of 1.63% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2017-7540?

No published fix for CVE-2017-7540 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2017-7540

CRITICALEPSS 74th pctl

9.8

CVSS v3

NVD

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.

CWE-184

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.63%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Issue Tracking1

github.com

Related Vulnerabilities

Other CWE-184 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-5217	Critical	9.8	100%	KEV	-
CVE-2022-43396	High	8.8	57%	-	Fix
CVE-2017-7525	Critical	9.8	38%	-	Fix
CVE-2024-5178	Medium	4.9	34%	-	-
CVE-2018-7489	Critical	9.8	20%	-	Fix
CVE-2018-6383	High	8.8	13%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.