Input validation error in ServiceNow - CVE-2026-0542
Published: February 26, 2026
Vulnerability identifier: #VU123308
CSH Severity: Critical
CVSS v4.0: 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/E:U/U:Red
CVE-ID: CVE-2026-0542
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ServiceNow
Affected software:
ServiceNow
ServiceNow
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input. A remote non-authenticated attacker can pass specially crafted input to the application and execute arbitrary code on the target system.
How to mitigate CVE-2026-0542
Install updates from vendor's website.