How severe is CVE-2026-8664?

CVE-2026-8664 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2026-8664 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8664?

CVE-2026-8664 affects Rapid7 Insightconnect Finger. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8664?

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

Does CVE-2026-8664 have an EU (EUVD) identifier?

Yes. CVE-2026-8664 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39159.

When was CVE-2026-8664 published?

CVE-2026-8664 was published on 2026-06-25 and last updated on 2026-06-29.

CVE-2026-8664

CVE-2026-8664 is a medium-severity vulnerability in Rapid7 Insightconnect Finger with a CVSS 3.x base score of 6.0. 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-78.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39159
Weakness: CWE-78
Affected product: Rapid7 Insightconnect Finger
Published: 2026-06-25
Last modified: 2026-06-29

Description

OS Command Injection vulnerability in Rapid7 InsightConnect Finger Plugin on Linux allows authenticated attackers to execute arbitrary OS commands via the user or host parameters due to insufficient input validation in shell command construction.

Frequently asked questions

What is CVE-2026-8664?: OS Command Injection vulnerability in Rapid7 InsightConnect Finger Plugin on Linux allows authenticated attackers to execute arbitrary OS commands via the user or host parameters due to insufficient input validation in shell command construction.
How severe is CVE-2026-8664?: CVE-2026-8664 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2026-8664 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8664?: CVE-2026-8664 affects Rapid7 Insightconnect Finger. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8664?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8664 have an EU (EUVD) identifier?: Yes. CVE-2026-8664 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39159.
When was CVE-2026-8664 published?: CVE-2026-8664 was published on 2026-06-25 and last updated on 2026-06-29.

References

https://extensions.rapid7.com/extension/finger

Affected products (1)

cpe:2.3:a:rapid7:insightconnect_finger:*:*:*:*:*:rapid7:*:*

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-100382 — Critical (CVSS 10.0): Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Wikimedia…
CVE-2026-77521 — Critical (CVSS 10.0): MaxKB is an open-source AI assistant for enterprise. Prior to version 2.10.5-lts, assistants with a tool, MCP tool,…
CVE-2026-82004 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS…
CVE-2026-76197 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS…
CVE-2026-76195 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS…
CVE-2026-19188 — Critical (CVSS 10.0): A critical OS command injection vulnerability has been identified in the Haiwell IoT Cloud HMI Gateway product. The…

Browse all CWE-78 (OS Command Injection) vulnerabilities →