CVE-2025-32023
HighPublished
Redis allows out of bounds writes in hyperloglog commands leading to RCE
- Published
- Jul 7, 2025
- Updated
- Feb 4, 2026
- Assigning CNA
- GitHub_M
- Evidence observed
- Feb 4, 2026
Primary CVSS
7.8/ 10High
Redis allows out of bounds writes in hyperloglog commands leading to RCE
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
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.
PoC & Exploit for CVE-2025-32023 / PlaidCTF 2025 "Zerodeo"
Exploit for CVE-2025-32023
CVE-2025-32023
Beatriz Fresno Naumova · linux · Feb 4, 2026
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