# CVE-2025-32023: Redis allows out of bounds writes in hyperloglog commands leading to RCE

> CVE-2025-32023: Redis allows out of bounds writes in hyperloglog commands leading to RCE. CVSS 7.0 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-32023
Last updated: 2026-06-17T09:11:20Z

- Published: 2025-07-07 15:22 UTC · Updated: 2026-06-17 09:11 UTC · Assigner: GitHub\_M
- CVSS: 7.0 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 6.5%, 94th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-680

## 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.

## Affected vendors and products

- redis: redis

## Tracked companies

- [Redis](https://rewindex.com/company/redis.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-32023)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-32023)
- [https://github.com/redis/redis/commit/50188747cbfe43528d2719399a2a3c9599169445](https://github.com/redis/redis/commit/50188747cbfe43528d2719399a2a3c9599169445)
- [https://github.com/redis/redis/releases/tag/6.2.19](https://github.com/redis/redis/releases/tag/6.2.19)
- [https://github.com/redis/redis/releases/tag/7.2.10](https://github.com/redis/redis/releases/tag/7.2.10)
- [https://github.com/redis/redis/releases/tag/7.4.5](https://github.com/redis/redis/releases/tag/7.4.5)
- [https://github.com/redis/redis/releases/tag/8.0.3](https://github.com/redis/redis/releases/tag/8.0.3)
- [https://github.com/redis/redis/security/advisories/GHSA-rp2m-q4j6-gr43](https://github.com/redis/redis/security/advisories/GHSA-rp2m-q4j6-gr43)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-32023 · Markdown: https://rewindex.com/cve/CVE-2025-32023.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-32023 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:06:22.378Z