CVE-2025-32023
Redis allows out of bounds writes in hyperloglog commands leading to RCE
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 6.5% · top 6.2% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.
Weakness
Affected products
References (7)
- https://github.com/redis/redis/security/advisories/GHSA-rp2m-q4j6-gr43 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/redis/redis/commit/50188747cbfe43528d2719399a2a3c9599169445 (opens in a new tab)x_refsource_MISC
- https://github.com/redis/redis/releases/tag/6.2.19 (opens in a new tab)x_refsource_MISC
- https://github.com/redis/redis/releases/tag/7.2.10 (opens in a new tab)x_refsource_MISC
- https://github.com/redis/redis/releases/tag/7.4.5 (opens in a new tab)x_refsource_MISC
- https://github.com/redis/redis/releases/tag/8.0.3 (opens in a new tab)x_refsource_MISC
- https://www.exploit-db.com/exploits/52477 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-32023)Record last updated .