CVE-2026-123039: checkpoint Quantum Security Gateway · Missing Authorization
Affects checkpoint Quantum Security GatewaySource CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 12 Nov 2026, 14:19 UTC
Thin evidence
One scorer or none| CNA (checkpoint) | CVSS 3.1 | 7.8 |
|---|
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 12 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| checkpointQuantum Security Gateway | Affected
| Fixed in– |
| checkpointQuantum Security Management | Affected
| Fixed in– |
AI-suggested
Until a fix is available, restrict local user access to trusted personnel only and monitor for suspicious local activity involving the DynamicCLI daemon or the /tmp/dynamic_socket.
Description
CVE-2026-123039 is a high-severity vulnerability in Checkpoint's Quantum Security Gateway. The Gaia OS DynamicCLI daemon runs as root and listens on a world-writable local socket (/tmp/dynamic_socket) without authenticating connecting processes. This allows an authenticated local user to send commands to the socket and have them executed with root privileges.