How severe is CVE-2017-9450?

CVE-2017-9450 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-9450 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-9450?

CVE-2017-9450 affects Amazon Amazon Web Services Cloudformation Bootstrap. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9450?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-9450 published?

CVE-2017-9450 was published on 2017-10-30 and last updated on 2026-06-17.

CVE-2017-9450

CVE-2017-9450 is a high-severity vulnerability in Amazon Amazon Web Services Cloudformation Bootstrap with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Amazon Amazon Web Services Cloudformation Bootstrap
Published: 2017-10-30
Last modified: 2026-06-17

Description

The Amazon Web Services (AWS) CloudFormation bootstrap tools package (aka aws-cfn-bootstrap) before 1.4-19.10 allows local users to execute arbitrary code with root privileges by leveraging the ability to create files in an unspecified directory.

Frequently asked questions

What is CVE-2017-9450?: The Amazon Web Services (AWS) CloudFormation bootstrap tools package (aka aws-cfn-bootstrap) before 1.4-19.10 allows local users to execute arbitrary code with root privileges by leveraging the ability to create files in an unspecified directory.
How severe is CVE-2017-9450?: CVE-2017-9450 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-9450 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-9450?: CVE-2017-9450 affects Amazon Amazon Web Services Cloudformation Bootstrap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9450?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-9450 published?: CVE-2017-9450 was published on 2017-10-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:amazon:amazon_web_services_cloudformation_bootstrap:*:*:*:*:*:*:*:*

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