SB2026091661 - Remote code execution in Check Point Gaia
Published: September 16, 2026
Security Bulletin ID
SB2026091661
CSH Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2026-91843)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: 10 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H]
The vulnerability allows a remote attacker to execute arbitrary code with root privileges.
The vulnerability exists due to a stack-based buffer overflow in the login process of Security Management and Log Servers when processing an unauthenticated login. A remote attacker can submit an excessively long username to execute arbitrary code with root privileges.
Remediation
Install update from vendor's website.