CVE-2025-46819 - CVE House

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Status published Medium CVE-2025-46819

Redis is vulnerable to DoS via specially crafted LUA scripts

6.3 CVSS

Vulnerability 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 read out-of-bound data or crash the server and subsequent denial of service. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to block a script by restricting both the EVAL and FUNCTION command families.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from redis

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Redis: Bug in XACKDEL may lead to stack overflow and potential RCE

Redis Lua Use-After-Free may lead to remote code execution

Redis DoS Vulnerability due to bad connection error handling

Redis: Authenticated users can execute LUA scripts as a different user

Lua library commands may lead to integer overflow and potential RCE

Affected Vendor

redis

View all reports →

Affected Software

redis

Vulnerable Versions:

< 8.2.2

Timeline

Official Publish: October 3rd, 2025

Last Modified: October 31st, 2025

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1055 Process Injection

Defense Evasion

T1105 Ingress Tool Transfer

Command and Control

T1499 Endpoint Denial of Service