Is CVE-2026-123039 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-123039 being exploited in the wild.

How severe is CVE-2026-123039?

High severity, with a CVSS score of 7.8, published 12 November 2026.

Is there a fix for CVE-2026-123039?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-123039 attacked?

It is attacked with local access, in an operating system.

Am I affected by CVE-2026-123039?

Check whether you run Check Point Gaia OS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-123039: Gaia OS DynamicCLI privilege escalation via unauthenticated socket

CVE-2026-123039 · Severity: high · CVSS 7.8 · Published 2026-11-12

Gaia OS includes a DynamicCLI daemon that runs with root privileges but accepts commands from any local user via an unprotected socket file. An attacker with local access to the system can send arbitrary commands to this socket and have them executed as root, gaining full control of the operating system.

Vendors: Check Point.

Quick answers

Is CVE-2026-123039 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-123039 being exploited in the wild.
How severe is CVE-2026-123039?: High severity, with a CVSS score of 7.8, published 12 November 2026.
Which products and versions are affected?: Check Point Gaia OS.
Is there a fix for CVE-2026-123039?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-123039 attacked?: It is attacked with local access, in an operating system.
Am I affected by CVE-2026-123039?: Check whether you run Check Point Gaia OS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The DynamicCLI daemon listens on a world-writable Unix socket (/tmp/dynamic_socket) without authenticating connecting processes. A local attacker can connect to this socket and execute commands that are processed with root privileges. This is a local privilege escalation vulnerability requiring only local system access.

Affected products

Check Point Gaia OS

Timeline

2026-11-12: disclosed

References

https://support.checkpoint.com/results/sk/sk1000362

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