How severe is CVE-2021-4016?

CVE-2021-4016 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-4016 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4016?

CVE-2021-4016 affects Rapid7 Insight Agent. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4016?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-4016 published?

CVE-2021-4016 was published on 2022-01-21 and last updated on 2026-06-17.

CVE-2021-4016

CVE-2021-4016 is a medium-severity vulnerability in Rapid7 Insight Agent with a CVSS 3.x base score of 4.0. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
CVSS v2: 2.1
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Rapid7 Insight Agent
Published: 2022-01-21
Last modified: 2026-06-17

Description

Rapid7 Insight Agent, versions prior to 3.1.3, suffer from an improper access control vulnerability whereby, the user has access to the snapshot directory. An attacker can access, read and copy any of the files in this directory e.g. asset_info.json or file_info.json, leading to a loss of confidentiality. This issue was fixed in Rapid7 Insight Agent 3.1.3.

Frequently asked questions

What is CVE-2021-4016?: Rapid7 Insight Agent, versions prior to 3.1.3, suffer from an improper access control vulnerability whereby, the user has access to the snapshot directory. An attacker can access, read and copy any of the files in this directory e.g. asset_info.json or file_info.json, leading to a loss of confidentiality. This issue was fixed in Rapid7 Insight Agent 3.1.3.
How severe is CVE-2021-4016?: CVE-2021-4016 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-4016 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4016?: CVE-2021-4016 affects Rapid7 Insight Agent. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4016?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4016 published?: CVE-2021-4016 was published on 2022-01-21 and last updated on 2026-06-17.

References

https://docs.rapid7.com/release-notes/insightagent/20220119/

Affected products (1)

cpe:2.3:a:rapid7:insight_agent:*:*:*:*:*:*:*:*

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