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I. Basic Information for CVE-2025-49844
Vulnerability Information

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Vulnerability Title
Redis Lua Use-After-Free may lead to remote code execution
Source: NVD (National Vulnerability Database)
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 manipulate the garbage collector, trigger a use-after-free 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. 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 restrict EVAL and EVALSHA commands.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Redis 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Redis是美国Redis公司的一套开源的使用ANSI C编写、支持网络、可基于内存亦可持久化的日志型、键值(Key-Value)存储数据库,并提供多种语言的API。 Redis 8.2.1及之前版本存在资源管理错误漏洞,该漏洞源于特制Lua脚本可操纵垃圾收集器,触发释放后重用,可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
redisredis < 8.2.2 -
II. Public POCs for CVE-2025-49844
#POC DescriptionSource LinkShenlong Link
1Nonehttps://github.com/gopinaath/CVE-2025-49844-discoveryPOC Details
2CVE-2025-49844 – Redis Lua Parser Use-After-Freehttps://github.com/dwisiswant0/CVE-2025-49844POC Details
3CVE-2025-49844 (RediShell)https://github.com/raminfp/redis_exploitPOC Details
4Nonehttps://github.com/lastvocher/redis-CVE-2025-49844POC Details
5Minimal Redis honeypot detecting RediShell (CVE-2025-49844) exploits.https://github.com/srozb/reditrapPOC Details
6Nonehttps://github.com/pedrorichil/CVE-2025-49844POC Details
7A powerful Redis exploitation tool that leverages CVE-2025-4984https://github.com/Yuri08loveElaina/CVE-2025-49844POC Details
8CVE-2025-49844 POC https://github.com/YuanBenSir/CVE-2025-49844_POCPOC Details
9CVE-2025-49844 checkerhttps://github.com/Mufti22/CVE-2025-49844-RediShell-Vulnerability-ScannerPOC Details
10Redis 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 manipulate the garbage collector, trigger a use-after-free 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. 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 restrict EVAL and EVALSHA commands. https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2025/CVE-2025-49844.yamlPOC Details
11Nonehttps://github.com/imbas007/CVE-2025-49844-Vulnerability-ScannerPOC Details
12PoC of RediShellhttps://github.com/angelusrivera/CVE-2025-49844POC Details
13CVE-2025-49844 POC https://github.com/MiclelsonCN/CVE-2025-49844_POCPOC Details
14🔍 Explore and test the CVE-2025-49844 (RediShell) vulnerability in Redis with this practical lab environment for secure education and research.https://github.com/ksnnd32/redis_exploitPOC Details
15🚨 Exploit the CVE-2025-49844 Redis Lua interpreter UAF vulnerability to execute arbitrary shellcode and gain persistent backdoor access.https://github.com/Zain3311/CVE-2025-49844POC Details
16اسکپلویت اسیب پذیری CVE-2025-49844https://github.com/elyasbassir/CVE-2025-49844POC Details
17CVE-2025-49844https://github.com/B1ack4sh/Blackash-CVE-2025-49844POC Details
18Proof-of-concept for CVE-2025-49844https://github.com/saneki/cve-2025-49844POC Details
19Untested completition of the Redishell PoC made by AIhttps://github.com/Network-Sec/CVE-2025-49844-RediShell-AI-made-RevshellPOC Details
20CVE-2025-49844https://github.com/Ashwesker/Blackash-CVE-2025-49844POC Details
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III. Intelligence Information for CVE-2025-49844
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