CVE-2025-32023: Redis allows out of bounds writes in hyperloglog commands leading to RCE
Description
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.
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H · CWE-680
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
redis: redis
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/redis/redis/commit/50188747cbfe43528d2719399a2a3c9599169445 (opens in new tab)
- github.com/redis/redis/releases/tag/6.2.19 (opens in new tab)
- github.com/redis/redis/releases/tag/7.2.10 (opens in new tab)
- github.com/redis/redis/releases/tag/7.4.5 (opens in new tab)
- github.com/redis/redis/releases/tag/8.0.3 (opens in new tab)
- github.com/redis/redis/security/advisories/GHSA-rp2m-q4j6-gr43 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)