CVE-2025-32023

A flaw was found in Redis. This flaw allows an authenticated user to trigger an integer overflow by sending a specially crafted string, resulting in a stack or heap out-of-bounds write during hyperloglog operations. This issue potentially results in remote code execution.

This flaw can only be exploited by an authenticated attacker when the Redis server has hyperloglog operations implemented, limiting the impact of this issue.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Prevent users, specially unprivileged or untrusted users, to execute hyperloglog operations by using ACL to restrict hyperloglog commands.