CVE-2025-46817

HIGH NUCLEI

Redis < 6.2.20 - Authenticated Remote Code Execution via Lua Script Integer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-46817. PoCs published by slayerkkkk. A Nuclei detection template is also available.

AI-analyzed exploit summary This repository contains a functional C exploit for CVE-2025-46817, targeting an integer overflow in Redis's Lua `unpack()` function. The exploit demonstrates a denial-of-service (crash) by triggering memory corruption via a crafted Lua script payload.

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.

Exploits (1)

github WORKING POC 2 stars
by slayerkkkk · cpoc
https://github.com/slayerkkkk/CVE-2025-46817-PoC

This repository contains a functional C exploit for CVE-2025-46817, targeting an integer overflow in Redis's Lua `unpack()` function. The exploit demonstrates a denial-of-service (crash) by triggering memory corruption via a crafted Lua script payload.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Redis <= 8.2.1, <= 8.0.3, <= 7.4.5, <= 7.2.10, <= 6.2.19
No auth needed
Prerequisites: Network access to Redis server · Redis server with Lua scripting enabled
devstral-2 · analyzed Feb 19, 2026 Full analysis →

Nuclei Templates (1)

Redis < 8.2.1 lua script - Integer Overflow
CRITICALVERIFIEDby pussycat0x
Shodan: product:"redis"

Scores

CVSS v3 7.0
EPSS 0.1051
EPSS Percentile 93.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-190
Status published
Products (1)
redis/redis < 6.2.20
Published Oct 03, 2025
Tracked Since Feb 18, 2026