How severe is CVE-2019-4000?

CVE-2019-4000 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-2019-4000 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-4000?

CVE-2019-4000 affects Druva Insync. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-4000?

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-2019-4000 published?

CVE-2019-4000 was published on 2020-02-25 and last updated on 2026-06-17.

CVE-2019-4000

CVE-2019-4000 is a high-severity vulnerability in Druva Insync 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-94.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Druva Insync
Published: 2020-02-25
Last modified: 2026-06-17

Description

Improper neutralization of directives in dynamically evaluated code in Druva inSync Mac OS Client 6.5.0 allows a local, authenticated attacker to execute arbitrary Python expressions with root privileges.

Frequently asked questions

What is CVE-2019-4000?: Improper neutralization of directives in dynamically evaluated code in Druva inSync Mac OS Client 6.5.0 allows a local, authenticated attacker to execute arbitrary Python expressions with root privileges.
How severe is CVE-2019-4000?: CVE-2019-4000 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-2019-4000 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-4000?: CVE-2019-4000 affects Druva Insync. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-4000?: 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-2019-4000 published?: CVE-2019-4000 was published on 2020-02-25 and last updated on 2026-06-17.

References

https://www.tenable.com/security/research/tra-2020-12

Affected products (1)

cpe:2.3:a:druva:insync:6.5.0:*:*:*:*:*:*:*

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