#VU121141 Deserialization of untrusted data in vLLM - CVE-2025-32444
Published: January 9, 2026
Vulnerability identifier: #VU121141
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-32444
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
vLLM
vLLM
Software vendor:
vLLM
vLLM
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in Mooncake integration. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Note, only systems with Mooncake integration are affected.
Remediation
Install updates from vendor's website.