How severe is CVE-2019-3786?

CVE-2019-3786 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2019-3786 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3786?

CVE-2019-3786 affects Cloudfoundry Bosh Backup And Restore. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-3786?

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-2019-3786 published?

CVE-2019-3786 was published on 2019-04-24 and last updated on 2026-06-17.

CVE-2019-3786

CVE-2019-3786 is a high-severity vulnerability in Cloudfoundry Bosh Backup And Restore with a CVSS 3.x base score of 7.1. 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-345.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 4.0
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Cloudfoundry Bosh Backup And Restore
Published: 2019-04-24
Last modified: 2026-06-17

Description

Cloud Foundry BOSH Backup and Restore CLI, all versions prior to 1.5.0, does not check the authenticity of backup scripts in BOSH. A remote authenticated malicious user can modify the metadata file of a Bosh Backup and Restore job to request extra backup files from different jobs upon restore. The exploited hooks in this metadata script were only maintained in the cfcr-etcd-release, so clusters deployed with the BBR job for etcd in this release are vulnerable.

Frequently asked questions

What is CVE-2019-3786?: Cloud Foundry BOSH Backup and Restore CLI, all versions prior to 1.5.0, does not check the authenticity of backup scripts in BOSH. A remote authenticated malicious user can modify the metadata file of a Bosh Backup and Restore job to request extra backup files from different jobs upon restore. The exploited hooks in this metadata script were only maintained in the cfcr-etcd-release, so clusters deployed with the BBR job for etcd in this release are vulnerable.
How severe is CVE-2019-3786?: CVE-2019-3786 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2019-3786 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3786?: CVE-2019-3786 affects Cloudfoundry Bosh Backup And Restore. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-3786?: 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-2019-3786 published?: CVE-2019-3786 was published on 2019-04-24 and last updated on 2026-06-17.

References

https://www.cloudfoundry.org/blog/cve-2019-3786

Affected products (1)

cpe:2.3:a:cloudfoundry:bosh_backup_and_restore:*:*:*:*:*:*:*:*

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