Command injection in MOVEit WAF - CVE-2026-3518
Published: April 21, 2026
Vulnerability identifier: #VU126649
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-3518
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary commands.
The vulnerability exists due to command injection in the API killsession command when processing unsanitized input. A remote user can send crafted input to execute arbitrary commands.
Exploitation requires All permissions.
Affected software
MOVEit WAF
LoadMaster
LoadMaster
How to mitigate CVE-2026-3518
Install security update from vendor's website.
MOVEit WAF - update to 7.2.63.0
LoadMaster - addressed in versions 7.2.54.17, 7.2.63.1
LoadMaster - addressed in versions 7.2.54.17, 7.2.63.1