CVE-2026-8658: OS Command Injection vulnerability in Rapid7 InsightConnect Tcpdump Plugin on Linux allows authenticated attac

Q: How do I fix CVE-2026-8658?

insightconnect tcpdump: upgrade to 2.0.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-8658 being exploited?

CVE-2026-8658 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-8658 affect?

CVE-2026-8658 affects insightconnect tcpdump. Severity is medium (CVSS 6.0). 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

Q: How urgent is CVE-2026-8658?

Priority 44/100. On your watchlist

This month

MEDIUM 6.0WATCHLISTUPGRADE

CVE-2026-8658 is a medium-severity flaw (CVSS 6.0) affecting insightconnect tcpdump. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.0 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-06-25
Last modified	2026-10-25

Publisher (CNA): Rapid7, Inc. · Vendor: rapid7

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-25 03:16 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

rapid7 insightconnect tcpdump UPGRADE

Affected: < 2.0.0

Fixed in: 2.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy insightconnect-tcpdump || rpm -q insightconnect-tcpdump || insightconnect-tcpdump --version

2. UPGRADE to 2.0.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade insightconnect-tcpdump

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade insightconnect-tcpdump

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-8658?

insightconnect tcpdump: upgrade to 2.0.0. Exact commands for each OS are on this page.

Is CVE-2026-8658 being exploited?

CVE-2026-8658 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-8658 affect?

CVE-2026-8658 affects insightconnect tcpdump. Severity is medium (CVSS 6.0). 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

How urgent is CVE-2026-8658?

Priority 44/100. On your watchlist

References

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