CVE-2026-123039

Description

The Gaia OS DynamicCLI daemon runs as root and listens on a world-writable local socket (/tmp/dynamic_socket) without authenticating connecting processes. An authenticated local user can send a command to the socket and have it executed as root.

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

• 7.8CVSS 3.1, Highfrom the CNA (checkpoint)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What to do

• Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Timeline

1. 12 Nov 2026 Published
2. 13 Nov 2026 CVE-2026-123039 added to CISA KEV
3. 13 Nov 2026 Added to the CISA KEV catalogue

Weakness

• CWE-862
• CWE-732

Related coverage

• Check Point Gaia DynamicCLI bug lets a local user run commands as root; CISA adds it to KEV13 Nov 2026
• PHP2Shell Flaws Used to Break Into Check Point Gateways and Wipe an ESXi Host13 Nov 2026

References

• support.checkpoint.com