CVE-2025-46817
Lua library commands may lead to integer overflow and potential RCE
Description
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.
INFO
Published Date :
Oct. 3, 2025, 6:15 p.m.
Last Modified :
Oct. 8, 2025, 3:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update Redis to version 8.2.2 or later.
- Apply security patches for Redis.
- Review Lua scripting usage.
Public PoC/Exploit Available at Github
CVE-2025-46817 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-46817.
| URL | Resource |
|---|---|
| https://github.com/redis/redis/commit/fc9abc775e308374f667fdf3e723ef4b7eb0e3ca | Patch |
| https://github.com/redis/redis/releases/tag/8.2.2 | Release Notes |
| https://github.com/redis/redis/security/advisories/GHSA-m8fj-85cg-7vhp | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-46817 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-46817
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CVE-2025-46817 – Redis Lua unpack Integer Overflow (Potential RCE)
Lua
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-46817 vulnerability anywhere in the article.
-
CybersecurityNews
PoC Exploit Released for Critical Lua Engine Vulnerabilities
Three newly disclosed vulnerabilities have been identified in the Lua scripting engine of Redis 7.4.5, each presenting severe risks of remote code execution and privilege escalation. Redrays has relea ... Read more
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Daily CyberSecurity
Critical Flaw CVE-2025-49844 (CVSS 10.0) Allows Remote Code Execution in Redis
Redis, the popular open-source in-memory data store widely used for real-time analytics, caching, and message brokering, has released multiple patches addressing four security vulnerabilities that cou ... Read more
The following table lists the changes that have been made to the
CVE-2025-46817 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Oct. 08, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* versions up to (excluding) 8.2.2 Added Reference Type GitHub, Inc.: https://github.com/redis/redis/commit/fc9abc775e308374f667fdf3e723ef4b7eb0e3ca Types: Patch Added Reference Type GitHub, Inc.: https://github.com/redis/redis/releases/tag/8.2.2 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/redis/redis/security/advisories/GHSA-m8fj-85cg-7vhp Types: Vendor Advisory -
New CVE Received by [email protected]
Oct. 03, 2025
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-190 Added Reference https://github.com/redis/redis/commit/fc9abc775e308374f667fdf3e723ef4b7eb0e3ca Added Reference https://github.com/redis/redis/releases/tag/8.2.2 Added Reference https://github.com/redis/redis/security/advisories/GHSA-m8fj-85cg-7vhp