Deserialization of untrusted data in vLLM - CVE-2025-32444
Published: January 9, 2026
Vulnerability identifier: #VU121141
CSH Severity: High
CVSS v4: 9.2 [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]
CVE-ID: CVE-2025-32444
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
vLLM
How to mitigate CVE-2025-32444
Install updates from vendor's website.
vLLM - update to 0.8.5