Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redis | Redis | >= 2.8.0, < 6.2.19 |
Related Weaknesses (CWE)
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
FAQ
What is CVE-2025-32023?
CVE-2025-32023 is a vulnerability with a CVSS score of 7.0 (HIGH). 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...
How severe is CVE-2025-32023?
CVE-2025-32023 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-32023?
Check the references section above for vendor advisories and patch information. Affected products include: Redis Redis.