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Insightconnect Tcpdump Plugin CVE-2026-8658

| EUVDEUVD-2026-39163 HIGH
OS Command Injection (CWE-78)
2026-06-25 rapid7 GHSA-jpr4-h957-w6xg
8.8
CVSS 3.1 · NVD
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Severity by source

Vendor (rapid7) PRIMARY
MEDIUM
qualitative
NVD
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.8 HIGH

Authenticated plugin operator (PR:L) supplies parameters over the network (AV:N) with low complexity and no interaction; command injection yields full host compromise (C:H/I:H/A:H).

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (rapid7).

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

8
Analysis Updated
Jun 29, 2026 - 19:49 vuln.today
v3 (cvss_changed)
Analysis Updated
Jun 29, 2026 - 19:48 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Jun 29, 2026 - 19:37 vuln.today
cvss_changed
Severity Changed
Jun 29, 2026 - 19:37 NVD
MEDIUM HIGH
CVSS changed
Jun 29, 2026 - 19:37 NVD
6.0 (MEDIUM) 8.8 (HIGH)
Patch available
Jun 25, 2026 - 04:16 EUVD
Analysis Generated
Jun 25, 2026 - 03:21 vuln.today
CVE Published
Jun 25, 2026 - 01:56 cve.org
MEDIUM 6.0

DescriptionNVD

OS Command Injection vulnerability in Rapid7 InsightConnect Tcpdump Plugin on Linux allows authenticated attackers to execute arbitrary OS commands via the options or filter parameters due to insufficient input sanitization in shell command construction.

AnalysisAI

OS command injection in Rapid7's InsightConnect Tcpdump Plugin (versions before 2.0.0) on Linux lets an authenticated attacker run arbitrary operating-system commands by injecting shell metacharacters into the 'options' or 'filter' parameters, which are unsafely concatenated into a tcpdump shell invocation. An attacker holding low-privileged access to a SOAR workflow that uses this plugin can fully compromise the orchestrator host (high confidentiality, integrity, and availability impact). …

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Recommended ActionAI

Within 24 hours: audit all InsightConnect deployments to identify Tcpdump Plugin versions and restrict low-privilege workflow creation permissions. …

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CVE-2026-8658 vulnerability details – vuln.today

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