#VU116609 Use-after-free in Redis - CVE-2025-49844
Published: October 6, 2025 / Updated: February 6, 2026
Vulnerability identifier: #VU116609
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2025-49844
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
Redis
Redis
Software vendor:
Redis Labs
Redis Labs
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error. A remote user can use a specially crafted Lua script to manipulate the garbage collector and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.