SB2026092701 - Remote code execution in Citrix NetScaler
Published: September 27, 2026
Security Bulletin ID
SB2026092701
CSH Severity
Critical
Patch available
NO
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) Input validation error (CVE-ID: N/A) Exploited
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to an unspecified issue. A remote non-authenticated attacker can send specially crafted requests to the affected system and execute arbitrary code.
Note, the vulnerability is being actively exploited in the wild as per watchTowr sources.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.