High severity · published Jun 25, 2026
CVE-2026-8658
OS Command Injection in Rapid7 InsightConnect Tcpdump Plugin
8.8
CVSS
1.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IT
InsightConnect Tcpdump Plugin · Rapid7
before 2.0.0 · source: vendor
IT
Insightconnect Tcpdump · Rapid7
before 2.0.0 · source: NVD