Integer Overflow to Buffer Overflow The advisory has been revoked - it doesn't affect any version of package redis (opens in a new tab)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2510-REDIS-14459628
- published18 Dec 2025
- disclosed7 Jul 2025
Introduced: 7 Jul 2025
CVE-2025-32023 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:25.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream redis package and not the redis package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2025-32023
- https://github.com/redis/redis/commit/50188747cbfe43528d2719399a2a3c9599169445
- 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/7.4.5
- https://github.com/redis/redis/releases/tag/8.0.3
- https://github.com/redis/redis/security/advisories/GHSA-rp2m-q4j6-gr43
- https://www.exploit-db.com/exploits/52477
- https://github.com/leesh3288/CVE-2025-32023