CVE-2025-32023

Redis is an open source, in-memory database that persists on disk. From 2.8 to before 8.0.3, 7.4.5, 7.2.10, and 6.2.19, an authenticated user may use a specially crafted string to trigger a stack/heap out of bounds write on hyperloglog operations, potentially leading to remote code execution. The bug likely affects all Redis versions with hyperloglog operations implemented. This vulnerability is fixed in 8.0.3, 7.4.5, 7.2.10, and 6.2.19. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing hyperloglog operations. This can be done using ACL to restrict HLL commands.

Affected products

Alt Linux, Almalinux, Astra Linux, Centos, Debian, Linuxmint, Red Hat, Red Os

Redis

< 6.2.19, 7.2.10, 7.4.5, 8.0.3

Fix

Available

CVSS 3.1

7.8 HIGH

EPSS

4.0% (89th percentile)

Weakness

CWE-680

NVD status

Modified

Published

2025-07-07