CVE-2025-32023
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.96% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-680
- Affected
- redis/redis
- Source
- security-advisories@github.com
References
- https://github.com/redis/redis/commit/50188747cbfe43528d2719399a2a3c9599169445Patch
- https://github.com/redis/redis/releases/tag/6.2.19Release Notes
- https://github.com/redis/redis/releases/tag/7.2.10Release Notes
- https://github.com/redis/redis/releases/tag/7.4.5Release Notes
- https://github.com/redis/redis/releases/tag/8.0.3Release Notes
- https://github.com/redis/redis/security/advisories/GHSA-rp2m-q4j6-gr43Third Party Advisory
- https://www.exploit-db.com/exploits/52477
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.