CVE-2025-49844

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  2. Vulnerabilities (CVE)
  3. CVE-2025-49844

9.9 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.1 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

R

edis 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.

References
Link Resource
https://github.com/redis/redis/commit/d5728cb5795c966c5b5b1e0f0ac576a7e69af539 Patch
https://github.com/redis/redis/releases/tag/8.2.2 Release Notes
https://github.com/redis/redis/security/advisories/GHSA-4789-qfc9-5f9q Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/10/07/2 Third Party Advisory Mailing List
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*
cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*
cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*
History

12 Nov 2025, 11:34

Type Values Removed Values Added
References () http://www.openwall.com/lists/oss-security/2025/10/07/2 - () http://www.openwall.com/lists/oss-security/2025/10/07/2 - Third Party Advisory, Mailing List

04 Nov 2025, 22:16

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2025/10/07/2 -

16 Oct 2025, 16:28

Type Values Removed Values Added
CPE cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*
First Time Lfprojects
Lfprojects valkey

06 Oct 2025, 18:47

Type Values Removed Values Added
References () https://github.com/redis/redis/commit/d5728cb5795c966c5b5b1e0f0ac576a7e69af539 - () https://github.com/redis/redis/commit/d5728cb5795c966c5b5b1e0f0ac576a7e69af539 - Patch
References () https://github.com/redis/redis/releases/tag/8.2.2 - () https://github.com/redis/redis/releases/tag/8.2.2 - Release Notes
References () https://github.com/redis/redis/security/advisories/GHSA-4789-qfc9-5f9q - () https://github.com/redis/redis/security/advisories/GHSA-4789-qfc9-5f9q - Third Party Advisory
First Time Redis
Redis redis
CPE cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*

03 Oct 2025, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-10-03 20:15

Updated : 2025-11-12 11:34

NVD link : CVE-2025-49844

Mitre link : CVE-2025-49844

CVE.ORG link : CVE-2025-49844

JSON object : View

Products Affected

lfprojects

redis

CWE
CWE-416

Use After Free