CVE-2025-49844: exploitation status and patch state
CVE-2025-49844 · CVSS 9.9 CRITICAL · EPSS 87%
Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code execution. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.
Is CVE-2025-49844 exploited?
Not in the CISA KEV catalog.
EPSS puts exploitation in the next 30 days at 87%.
Public exploit code: none found in monitored sources.