CVE-2025-46817
Lua library commands may lead to integer overflow and potential RCE
- Published
- Oct 3, 2025
- Updated
- Oct 3, 2025
- Assigning CNA
- GitHub_M
- Evidence observed
- Aug 25, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 89.6%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to cause an integer overflow and potentially lead to remote code execution The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2.
Sources
2- CVE-2025-46817-PoCExploit
C-based exploit for CVE-2025-46817, a Redis integer overflow vulnerability, enabling crash detection and potential RCE via Lua unpack() payload.
Proof-of-concept for Redis Lua unpack integer overflow (CVE-2025-46817) demonstrating stack blow-up and potential RCE on Redis 8.2.1.
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